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Washington Heights, Chicago

Washington Heights is the 73rd of Chicago's 77 community areas. Located 12 mi from the Loop, it is on the city's far south side. Washington Heights is considered part of the Blue Island Ridge, along with the nearby community areas of Beverly, Morgan Park and Mount Greenwood, and the village of Blue Island. It contains a neighborhood also known as Washington Heights, as well as the neighborhoods of Brainerd and Fernwood. , Washington Heights had 27,453 inhabitants.

Named for the heights which are now part of the adjacent Beverly, the area was settled in the late 19th century at the intersection of two railroad lines. It was incorporated as a village in 1874, and was annexed by Chicago in 1890. During most of the 20th century, Washington Heights was primarily inhabited by Irish, Germans and Swedes; after late-20th-century white flight, it has been mainly inhabited by African-Americans. The area largely retained its middle-class character during its racial transition, declining somewhat in recent years.

Historically influenced by transit, Washington Heights includes the original site of the former Chicago Bridge & Iron Company. The Brainerd Bungalow Historic District and the Carter G. Woodson Regional Library, home of the largest collection of African-American history in the midwestern United States, are in the area.

Etymology
The area was named "Washington Heights" in honor of George Washington when a post office was established in 1869. The eponymous heights split off and became Beverly by 1900. Brainerd was named for E. L. Brainerd, who built a train station at 89th and Loomis Streets in 1887. Washington Heights was also known as Blue Island Ridge, Campbell's Woods, Dummy Junction, and North Blue Island.

19th century
What is now Washington Heights was primarily inhabited by farmers from the 1830s to the 1860s. The earliest known non-indigenous settlers in the area were DeWitt Lane in 1832, and Norman Rexford and Jefferson Gardner in 1834. Gardner established a tavern in 1836, which was acquired by William Wilcox in 1844. Wilcox had well water on his farm, which he served to travellers on the Vincennes Trail to Indiana; his tavern (and many others in the area) was popular, since nearby Beverly prohibited the sale of alcohol. John Blackstone purchased the land bordered by modern-day Halsted Street, Western Avenue, 91st and 115th Streets in 1839. Potawatami Indians remained in the area until they were expelled by treaty and settled in modern-day Kansas and Oklahoma in 1844. That year, Blackstone sold his land to Thomas Morgan of Surrey for $5,450. Irish, Germans, and native-born Americans settled the intersection of modern-day 103rd Street and Vincennes Avenue in 1860. The incorporation of Calumet Township in 1862 accelerated settlement of the area. Railroad workers began to settle in 1864 and 1865, beginning the dominance of railroads. In 1866, Willis M. Hitt and Laurin P. Hilliard subdivided land in the vicinity; this was followed three years later by the Blue Island Land and Building Company. Settlers and speculators were attracted to the area, which was at the intersection of the Rock Island Railroad and Panhandle Lines; both had been built in 1852. The Blue Island Land and Building Company was led by Frederick Hampden Winston, and among its stockholders was Rock Island Railroad president John F. Tracy. A Washington Heights post office was established in 1869, and Washington Heights was incorporated as a village in 1874. The village was annexed by Chicago in 1890. The modern community area is a conglomeration of early settlements, particularly the former Brainerd and Fernwood. Fernwood was established in 1883, southeast of Washington Heights. Growth was rapid, and it had over 185 houses by 1885. Brainerd was settled in 1880, northwest of Washington Heights; unlike Fernwood, it grew slowly due to a lack of transportation. Brainerd was annexed by Chicago at the same time as Washington Heights; Fernwood followed in 1891, and was incorporated into Washington Heights. Brainerd and Fernwood continue as neighborhoods.

20th century
The Men's Club of Brainerd was formed in 1902, and was renamed the Brainerd Improvement Club in 1903 to admit women. Gas lines were run in 1905, and telephones were installed in 1907. Streetcars were extended into the area in 1912. Loomis Street was paved in 1913, but the remaining roads north of the Rock Island Railroad tracks remained unpaved until 1925; the roads south of the tracks were paved in 1927. Electric streetlights were installed in 1928 and 1929. Brick bungalows were built between 1920 and 1950. Growth slowed during the Great Depression, but rebounded in the 1940s.

Washington Heights was one of the 75 community areas defined by the University of Chicago during the 1920s. The area's residents at this time were predominantly Irish, German and Swedish workers, who had moved from Englewood and Greater Grand Crossing. In 1940, foreign-born whites were 12.5 percent of the population; the top five nationalities were German, Irish, Swedish, Canadian, and English (or Welsh).

African-Americans began moving into the area east of Halsted Street during the 1950s; they had been restricted to certain areas of the city, and expanded into others in search of better homes and jobs. The African-American proportion of the population increased from 12 to 75 percent between 1960 and 1970, a trend encouraged by blockbusting. Despite fears by many whites of decreasing property values, the economic status of the new residents differed little; Washington Heights remained middle-class. Interstate 57 was built through the area, opening in 1967 and forcing many residents to move. The only highway in the city without a nickname, a portion of it was named for the Tuskegee Airmen in 2012.

21st century
Median household income declined somewhat during the 2000s; it was $2,000 less than the citywide median, and had been $6,000 above the citywide median in 1989.

The site of the Chicago Bridge & Iron Company foundry became a development of single-family homes. Known as the Renaissance at Beverly Ridge, the original development plan for the site failed due to lack of funds during a housing-market crash after about 25 homes were built. An alderman's wife was responsible for selling the development and received money from tax increment financing (leading to suspicions of impropriety), and a new developer stepped to finish the project. This developer, who had close relations to alderman Carrie Austin, also failed to meet expectations, being unable to produce the promised 91 houses by June 2019 and leading to the city cutting off public funds to the project that December. The project continued during the early 2020s without incident, except on a single block that was beleaguered by problems in home construction and delays in contract closing. Attempts by residents on that block to fix the problems were fruitless until Austin's office was contacted. Given that the block expected to be renamed in honor of the new developer, a white man, and the neighborhood is majority block was also the source of controversy given the issues.

Geography and neighborhoods
Washington Heights is community area #73. It is on Chicago's far south side, 12 mi from the Loop. Its northern border is the railroad tracks at 89th Street, and its southern border is West 107th Street. At several points its eastern border is Eggleston and Halsted, and its western border is Beverly Avenue until 103rd Street (when it shifts to Vincennes Avenue). The area contains the neighborhoods of Brainerd, Washington Heights, and Fernwood, and covers an area of 2.1425 sqmi. It is geographically divided by the Metra Rock Island Line tracks and Interstate 57.

Washington Heights, Morgan Park, Beverly, Mount Greenwood, and Blue Island are considered part of the Blue Island Ridge. The ridge is a glacial bluff which was named for its color, due to atmospheric conditions or its blue wildflowers. the area had 795.8 acres of single-family housing, 68.8 acres of multifamily housing, 55.3 acres of commercial development, 36.6 acres of industrial development, 84.5 acres of institutional development, and 9.9 acres of mixed-use development. An additional 676.5 acres was defined as transportation and other.

About three-quarters of the housing stock, 74.3 percent, in Washington Heights of single-family detached homes. Most of the houses (57.5 percent) were built between 1940 and 1969. The median number of rooms in an area house is 6.4, compared to 4.8 rooms citywide. 88.6 percent of the housing units were occupied, compared to a 90.1-percent occupancy rate between 2006 and 2010. Of the total number of units, 67.7 percent were owner-occupied and 32.3 percent were renter-occupied, compared to 69.5 percent and 30.5 percent between 2006 and 2010. Between 51 and 100 multifamily buildings in the area were considered affordable.

Brainerd
The original Brainerd settlement was bounded by 87th and 91st Streets and Racine and Ashland Avenues. The modern neighborhood is bounded by 89th Street, Princeton Park, 95th Street, and Beverly Boulevard. It contains the Brainerd Bungalow Historic District, which was added to the National Register of Historic Places in 2016. The historic district is roughly bounded by 89th Street, 95th Street, Loomis Street, and May Street. It consists of bungalows built between 1915 and 1931, with construction peaking in 1927. The district experienced a construction boom during the 1910s and 1920s, and its construction mirrors that of similar contemporary districts across the United States. Although 42 architects are known to have designed the district's buildings, several (including William E. Sammons, Braucher, McClellan, Joneke, and Johnson) dominated the construction. Almost half of the buildings have no known architect, however, and relied on preexisting building plans. In addition to the bungalows which make up most of the district's buildings, several multi-family residential buildings (duplexes and apartment buildings) are stylistically similar.

Fernwood
Fernwood is in southeastern Washington Heights. Established in 1883, it was annexed by Chicago in 1891. Parts of Fernwood extend into nearby Roseland, the location of a 1947 race riot over the placement of black veterans in the Fernwood Park Homes housing project. More than 1,000 police officers dispersed over 500 rioters, making 18 arrests in one of the largest dispatches of Chicago police at the time.

Washington Heights
The community area includes a neighborhood with the same name. The original Washington Heights settlement was centered around 103rd Street and Vincennes Avenue, and was annexed by Chicago in 1890.

Demographics
, 25,065 people in 9,538 households lived in Washington Heights. This represents an decrease of 5.4 percent from the 2010 Census, which in turn had represented a 11.2 percent decline from the 2000 Census. The area's racial composition was 1.3 percent white, 96.1 percent African-American, and 1.5 percent other races. Hispanics or Latinos of any race made up 1.1 percent of the population. The age range was broad, with 23.2 percent under the age of 19, 19.7 percent aged 20 to 34, 17.6 percent aged 35 to 49, 21.3 percent aged 50 to 64, and 18.3 percent aged 65 or older. The median age was 41.9. English was the only language spoken by 97.8 percent of the population aged five and older, compared to a citywide figure of 64 percent.

, median household income was $51,800, compared to the citywide median income of $58,247. Regarding income distribution, 29.4 percent of households earned less than $25,000 annually; 19.2 percent earned between $25,000 and $49,999; 18.4 percent earned between $50,000 and $74,999; 12.7 percent earned between $75,000 and $99,999; 13.7 percent earned between $100,000 and $149,999, and 6.6 percent earned more than $150,000. This compares with a citywide distribution of 24.3 percent, 19.9 percent, 15.1 percent, 11.2 percent, 13.8 percent and 15.7 percent, respectively. , most census tracts in the area had a median household income between $36,200 and $57,900 and were above the Department of Housing and Urban Development (HUD)'s low-income limit; two tracts had a median household income between $21,700 and $36,200, below HUD's low-income limit but above its very-low-income limit.

Hardship index is a metric, used by Chicago, which takes six indicators of public health to quantify the relative amount of hardship in a community area. The indicators generate a score of one to 100, with a higher score indicating greater hardship. , Washington Heights's hardship index was 48.

Economy and employment
Chicago Bridge & Iron Company was founded at 105th and Throop in 1889, and later relocated to Texas. , 55.7 percent of Washington Heights' population was in the labor force; the unemployment rate was 15.7 percent, compared to the citywide rate of 8.1 percent. Of those employed, a plurality (35.5 percent) worked outside Chicago; 25 percent worked in the Loop, 7.7 percent on the Near North Side, 5 percent on the Near West Side, and 1.8 percent in Hyde Park. About five percent of those employed in Washington Heights lived there; nearly half lived outside the city of Chicago.

Healthcare was Washington Heights' leading employer, employing 18.7 percent of the area's residents and making up 28 percent of its employees. The next four industries in employment of Washington Heights residents were administration (10.8 percent), education (10.7 percent), retail (9.6 percent), and public administration (9.3 percent). The next four industries in area employment were retail (21.8 percent), education (21.5 percent), accommodation and food service (9.9 percent), and other service (5.6 percent).

, Ashland Avenue and most of Vincennes Avenue were zoned for commerce, and 95th, 103rd and Halsted Streets and a portion of Vincennes Avenue were zoned for business. Halsted Street south of 103rd Street and 103rd Street east of Halsted Street made up a retail hub, and other retail establishments were scattered along 95th Street, Ashland Avenue, Vincennes Avenue, and elsewhere on Halsted.

Local
In the Chicago City Council, Washington Heights divided among the 21st Ward on the north (represented by Howard Brookins, who lives in the area), the 34th Ward on the south (represented by Carrie Austin), and the 9th Ward in its southeastern corner (represented by Anthony Beale).

In the Cook County Board of Commissioners, split between the 5th District (represented by Democrat Deborah Sims) on the south and the 4th District (represented by Democrat Stanley Moore, who lives in the area) on the north.

State
In the Illinois House of Representatives, most of Washington Heights in District 27 (represented by Democrat Justin Slaughter); the western part of Brainerd is in District 35, represented by Democrat Frances Ann Hurley. Slaughter lives in the area, and Hurley lives in Mount Greenwood. In the Illinois Senate, most of the area in District 14, represented by Democrat Emil Jones III; western Brainerd is in District 18, represented by Democrat William Cunningham.

Federal
Most of Washington Heights in Illinois's 1st congressional district, represented in the United States House of Representatives by Democrat Bobby Rush. The southeast is part of Illinois's 2nd congressional district, represented by Democrat Robin Kelly. A small area north of 97th Street and west of Beverly Boulevard is part of Illinois's 3rd congressional district, represented by Democrat Marie Newman. , the Cook Partisan Voting Index of the three districts was D+27, D+29 and D+6, respectively.

In the 2016 presidential election, Washington Heights cast 13,709 votes for Democratic candidate Hillary Clinton and 229 votes for Republican candidate Donald Trump. In the 2012 presidential election, the area cast 16,129 votes for Democratic candidate Barack Obama and 111 votes for Republican candidate Mitt Romney.

Courts and governance
Washington Heights is in the second subcircuit of the Circuit Court of Cook County. With the rest of Chicago, it is part of the Circuit Court's first municipal district. With the rest of Cook County, it is in the first judicial district of the Supreme Court of Illinois and the state's appellate courts. Washington Heights is in Calumet Township in Cook County. Townships in Chicago were abolished for governmental purposes in 1902, but are still used for property assessment.

 Public safety
Washington Heights is in the Chicago Police Department's 22nd District, whose headquarters is in nearby Morgan Park. 3,165 crimes were committed in Washington Heights, ranking it 32nd in crime; 291 of the crimes were violent, ranking the community 29th in violent crime. Fire Truck 24 is located at 104th Street and Vincennes Avenue. It is notable as the only Chicago fire house to not house a fire engine.

Postal service
Washington Heights' ZIP Codes are 60620, 60628, and 60643. Washington Heights any post offices, but some are located in nearby Auburn Gresham, Roseland, and Morgan Park.

Transportation
The area's history has been described as "all about transit", because of its location at the intersection of two rail lines and the construction of Interstate 57. The Panhandle and Rock Island Lines were built in 1852, and Interstate 57 opened in 1967.

Public transportation
three stations on the Rock Island District line, providing daily inbound commuter-rail service to LaSalle Street Station in Chicago and outbound service to the Joliet Transportation Center. The line splits into two branches just north of Washington Heights; one branch is at the area's northern border, and the other cuts through it. The 91st Street station is on the Beverly side of the Washington Heights-Beverly border in the north, and the Brainerd station is on 89th Street between Loomis Boulevard and Bishop Street. The branch which cuts through the area has two stations. The rush-hour-only station, 95th Street–Longwood, is at South Vincennes Avenue and 95th Street; the other is the 103rd Street–Washington Heights station. All stations are in Zone C for fare-collection purposes.

The 95th/Dan Ryan station on the Chicago Transit Authority (CTA)'s Red Line, the 14th busiest rapid-transit station on the Chicago "L", is in adjacent Roseland. the CTA 95, 103, and 112 routes with full-time service, and part-time service on the 108 CTA route and the 352 and 381 Pace routes.

Private transportation
, a plurality of occupied housing units (45.2 percent) had one vehicle available, compared to the citywide figure of 44.2 percent; 25.3 percent of units had two vehicles available, compared to the citywide figure of 21.8 percent. Three or more vehicles are available in 11.3 percent of housing units; 18.1 percent of units have none, compared to respective citywide figures of 7.0 and 26.9 percent. Most workers (62.1 percent) drove alone to work, compared to 48.8 percent citywide. The rest used other means of transportation; 22.8 percent took transit (compared to 28.2 percent citywide), 7.7 percent carpool, 1.0 percent walk or bicycle, and 3.0 percent use other modes. This compares with respective citywide figures of 7.7, 8.2, and 1.9 percent. In addition to the commuters, 3.5 percent worked from home compared to 5.2 percent citywide. Highly-walkable areas account for approximately 91 percent of people and jobs; the Chicago Metropolitan Agency for Planning defines such areas by population density, city-block length, tree-canopy cover, fatalities (or serious injuries) to pedestrians and bicyclists, density at intersections, and nearby amenities.

Education
The area's first public school opened in 1874. J. A. Wadhams, who taught in a small, wood-frame building for the previous two years, was the first principal of the new school. Fort Dearborn School opened in 1928 in southeastern Brainerd, replacing an earlier school on 89th Street which had become overcrowded. The school was designed by Board of Education architect John C. Christensen, who had designed several other schools in nearby neighborhoods. Gilbert Wilkinson was its first principal, remaining there until 1933. The school became overcrowded again during the early 1970s due demographic changes, and an addition was built at that time. The school is a contributing property to the Bungalow Historic District. The Academy of Our Lady, known colloquially (and later officially) as "Longwood Academy", operated in the area from 1874 to 1999.

In the Chicago Public Schools system, Washington Heights contains Julian High School, Fort Dearborn School and the Kipling, Evers, Fernwood, Green, Wacker, Garvey and Mount Vernon Elementary Schools. The Chicago International Charter School, a charter school with locations throughout the city, has its Loomis elementary-school and Longwood high-school campuses in the area. 13.6 percent of the population aged 25 and older held a bachelor's degree, and 8.1 percent held a graduate or professional degree. A plurality of residents (30.7 percent) had some college education without a degree, and 29.2 percent were high-school graduates; 10.2 percent had not finished high school, and 8 percent had an associate's degree. Respective citywide figures were 22.3, 15.1, 17.7, 22.9, 16.2, and 5.7 percent.

Washington Heights is home to the Carter G. Woodson Regional Library, a branch of the Chicago Public Library which opened in 1975. Named for African-American historian Carter G. Woodson, the library contains the Vivian G. Harsh Research Collection of Afro-American History and Literature (the largest collection of African-American history in the midwestern United States) and the sculpture Jacob's Ladder by South Side native Richard Hunt. After a 14-month renovation, it reopened in February 2018.

Parks and recreation
Portions of Washington Heights were part of the Ridge Park District before the 1934 amalgamation of 22 park districts into the Chicago Park District; other portions were part of the Fernwood Park District. 2.16 accessible park acres (0.87 ha) per 1,000 residents, compared to a citywide figure of 2.42 acres. The area includes Brainerd, Jackie Robinson, Euclid, Oakdale, and Joseph Robichaux Parks.

Brainerd Park is bounded by 91st and 92nd Streets, Racine Avenue and Throop Street. Although the Ridge Park District tried to purchase the open space for Brainerd Park from the Chicago Board of Education in 1932, the district had only made a down payment on the land by the time the park district was consolidated. The Chicago Park District completed the purchase in 1938, and quickly added athletic facilities and a fieldhouse. The original fieldhouse was demolished during the 1970s, and a new one was built to handle increasing youth needs. Brainerd Park is not a contributing property to the Bungalow Historic District due to its late completion, although it has been noted as always intended for community use. The park contains a water sprayer, tennis courts, a playground, a basketball court, a football and soccer field, a baseball and softball field, meeting rooms and assembly halls, and the fieldhouse. Jackie Robinson Park is on 107th Street. The Chicago Park District purchased land and established the park in 1957, while the Board of Education established Mount Vernon School. Originally named Mount Vernon Park, it was renamed in honor of Jackie Robinson in 1999. The park contains a basketball court, playgrounds, and a fieldhouse.

Euclid Park was acquired by the Fernwood Park District during the late 1920s; originally known as Fernwood Commons, it was renamed Euclid Park after a nearby subdivision named for the mathematician. It contains tennis courts, a baseball field, a basketball court, a spray pool, a playground, a football and soccer field, a clubroom, and a fieldhouse. Oakdale Park is named for a nearby neighborhood named for a grove of oak trees in the vicinity; the site was purchased by the Chicago Park District in 1947, and was developed during the 1950s. It contains a picnic grove, a baseball field, a basketball court, a spray pool, a playground, a football and soccer field, a swimming pool, a clubroom, and a fieldhouse. Joseph Robichaux Park was created in the late 1960s from land adjacent to Chicago and Western Indiana Railroad tracks, and its development began in 1970. The park was named for Joseph J. Robichaux, a local alderman and county commissioner. It contains a tennis court, a playground, a water sprayer, a gymnasium, a basketball court, a baseball field, a clubroom, a fieldhouse, and Dusty Folwarczny's sculpture, Give.

The Forest Preserve District of Cook County's Dan Ryan Woods are in Beverly, adjacent to the northwest corner of Washington Heights, and contains the Calumet Division Maintenance Headquarters. An abandoned stretch of railroad (formerly operated by Conrail) was converted into the 6 mi Major Taylor Trail during the late 1990s, with the Chicago Park District leasing the trail from the city's Department of Transportation in 2006. The bikeway runs between the Dan Ryan Woods and the Whistler Woods in Riverdale, crossing Interstate 57 and the Calumet River. Part of the Southland Century Bike Network, it was reportedly underutilized. In 2018 a mural of Taylor and a quote of his was painted on a wall adjacent to the trail by Chicago artist Bernard Williams.

Notable residents

 * Kam Buckner (born 1985), member of the Illinois House of Representatives since 2019. He was raised in Washington Heights.
 * Richard Driehaus (1942–2021) was raised in the Brainerd Historic Bungalow District, and was a vocal supporter and financier of preserved bungalow architecture in Chicago.
 * Terrance W. Gainer (born 1947), law enforcement official and 38th Sergeant at Arms of the United States Senate (2007–2014). Gainer was raised in the Longwood Manor neighborhood.
 * Byron Irvin (born 1966), professional basketball player who played for a number of teams (notably as a shooting guard for the Washington Bullets)
 * Eddie T. Johnson (born 1960), 62nd Superintendent of the Chicago Police Department (2016–2019). His family moved to Washington Heights from the Cabrini–Green Homes when he was nine years old.
 * Justin Slaughter, member of the Illinois House of Representatives. He was born in Washington Heights and currently resides in the community area.

title: Washington Heights, Chicago


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Human impact on the environment

Human impact on the environment (or anthropogenic environmental impact) refers to changes to biophysical environments and to ecosystems, biodiversity, and natural resources caused directly or indirectly by humans. Modifying the environment to fit the needs of society (as in the built environment) is causing severe effects including global warming,  environmental degradation (such as ocean acidification ), mass extinction and biodiversity loss,   ecological crisis, and ecological collapse. Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, neoliberal economic policies   and rapid economic growth, overconsumption, overexploitation, pollution, and deforestation. Some of the problems, including global warming and biodiversity loss, have been proposed as representing catastrophic risks to the survival of the human species.

The term anthropogenic designates an effect or object resulting from human activity. The term was first used in the technical sense by Russian geologist Alexey Pavlov, and it was first used in English by British ecologist Arthur Tansley in reference to human influences on climax plant communities. The atmospheric scientist Paul Crutzen introduced the term "Anthropocene" in the mid-1970s. The term is sometimes used in the context of pollution produced from human activity since the start of the Agricultural Revolution but also applies broadly to all major human impacts on the environment. Many of the actions taken by humans that contribute to a heated environment stem from the burning of fossil fuel from a variety of sources, such as: electricity, cars, planes, space heating, manufacturing, or the destruction of forests.

Overconsumption
Overconsumption is a situation where resource use has outpaced the sustainable capacity of the ecosystem. It can be measured by the ecological footprint, a resource accounting approach which compares human demand on ecosystems with the amount of planet matter ecosystems can renew. Estimates by the Global Footprint Network indicate that humanity's current demand is 70% higher than the regeneration rate of all of the planet's ecosystems combined. A prolonged pattern of overconsumption leads to environmental degradation and the eventual loss of resource bases.

Humanity's overall impact on the planet is affected by many factors, not just the raw number of people. Their lifestyle (including overall affluence and resource use) and the pollution they generate (including carbon footprint) are equally important. In 2008, The New York Times stated that the inhabitants of the developed nations of the world consume resources like oil and metals at a rate almost 32 times greater than those of the developing world, who make up the majority of the human population.

Human civilization has caused the loss of 83% of all wild mammals and half of plants. The world's chickens are triple the weight of all the wild birds, while domesticated cattle and pigs outweigh all wild mammals by 14 to 1. Global meat consumption is projected to more than double by 2050, perhaps as much as 76%, as the global population rises to more than 9 billion, which will be a significant driver of further biodiversity loss and increased Greenhouse gas emissions.

Population growth and size

Some scholars, environmentalists and advocates have linked human population growth or population size as a driver of environmental issues, including some suggesting this indicates an overpopulation scenario. In 2017, over 15,000 scientists around the world issued a second warning to humanity which asserted that rapid human population growth is the "primary driver behind many ecological and even societal threats." According to the Global Assessment Report on Biodiversity and Ecosystem Services, released by the United Nations' Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services in 2019, human population growth is a significant factor in contemporary biodiversity loss. A 2021 report in Frontiers in Conservation Science proposed that population size and growth are significant factors in biodiversity loss, soil degradation and pollution.

Some scientists and environmentalists, including Pentti Linkola, Jared Diamond and E. O. Wilson, posit that human population growth is devastating to biodiversity. Wilson for example, has expressed concern that when Homo sapiens reached a population of six billion their biomass exceeded that of any other large land dwelling animal species that had ever existed by over 100 times.

However, attributing overpopulation as a cause of environmental issues is controversial. Demographic projections indicate that population growth is slowing and world population will peak in the 21st century, and many experts believe that global resources can meet this increased demand, suggesting a global overpopulation scenario is unlikely. Other projections have the population continuing to grow into the next century. While some studies, including the British government's 2021 Economics of Biodiversity review, posit that population growth and overconsumption are interdependent,  critics suggest blaming overpopulation for environmental issues can unduly blame poor populations in the Global South or oversimplify more complex drivers, leading some to treat overconsumption as a separate issue.

Advocates for further reducing fertility rates, among them Rodolfo Dirzo and Paul R. Ehrlich, argue that this reduction should primarily affect the "overconsuming wealthy and middle classes," with the ultimate goal being to shrink "the scale of the human enterprise" and reverse the "growthmania" which they say threatens biodiversity and the "life-support systems of humanity."

Fishing and farming
The environmental impact of agriculture varies based on the wide variety of agricultural practices employed around the world. Ultimately, the environmental impact depends on the production practices of the system used by farmers. The connection between emissions into the environment and the farming system is indirect, as it also depends on other climate variables such as rainfall and temperature. There are two types of indicators of environmental impact: "means-based", which is based on the farmer's production methods, and "effect-based", which is the impact that farming methods have on the farming system or on emissions to the environment. An example of a means-based indicator would be the quality of groundwater that is affected by the amount of nitrogen applied to the soil. An indicator reflecting the loss of nitrate to groundwater would be effect-based.

The environmental impact of agriculture involves a variety of factors from the soil, to water, the air, animal and soil diversity, plants, and the food itself. Some of the environmental issues that are related to agriculture are climate change, deforestation, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.

Fishing
The environmental impact of fishing can be divided into issues that involve the availability of fish to be caught, such as overfishing, sustainable fisheries, and fisheries management; and issues that involve the impact of fishing on other elements of the environment, such as by-catch and destruction of habitat such as coral reefs. According to the 2019 Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services report, overfishing is the main driver of mass species extinction in the oceans.

These conservation issues are part of marine conservation, and are addressed in fisheries science programs. There is a growing gap between how many fish are available to be caught and humanity's desire to catch them, a problem that gets worse as the world population grows.

Similar to other environmental issues, there can be conflict between the fishermen who depend on fishing for their livelihoods and fishery scientists who realize that if future fish populations are to be sustainable then some fisheries must reduce or even close.

The journal Science published a four-year study in November 2006, which predicted that, at prevailing trends, the world would run out of wild-caught seafood in 2048. The scientists stated that the decline was a result of overfishing, pollution and other environmental factors that were reducing the population of fisheries at the same time as their ecosystems were being degraded. Yet again the analysis has met criticism as being fundamentally flawed, and many fishery management officials, industry representatives and scientists challenge the findings, although the debate continues. Many countries, such as Tonga, the United States, Australia and New Zealand, and international management bodies have taken steps to appropriately manage marine resources.

The UN's Food and Agriculture Organization (FAO) released their biennial State of World Fisheries and Aquaculture in 2018 noting that capture fishery production has remained constant for the last two decades but unsustainable overfishing has increased to 33% of the world's fisheries. They also noted that aquaculture, the production of farmed fish, has increased from 120 million tonnes per year in 1990 to over 170 million tonnes in 2018.

Populations of oceanic sharks and rays have been reduced by 71% since 1970, largely due to overfishing. More than three-quarters of the species comprising this group are now threatened with extinction.

Irrigation
The environmental impact of irrigation includes the changes in quantity and quality of soil and water as a result of irrigation and the ensuing effects on natural and social conditions at the tail-end and downstream of the irrigation scheme.

The impacts stem from the changed hydrological conditions owing to the installation and operation of the scheme.

An irrigation scheme often draws water from the river and distributes it over the irrigated area. As a hydrological result it is found that: These may be called direct effects.
 * the downstream river discharge is reduced
 * the evaporation in the scheme is increased
 * the groundwater recharge in the scheme is increased
 * the level of the water table rises
 * the drainage flow is increased.

Effects on soil and water quality are indirect and complex, and subsequent impacts on natural, ecological and socio-economic conditions are intricate. In some, but not all instances, water logging and soil salinization can result. However, irrigation can also be used, together with soil drainage, to overcome soil salinization by leaching excess salts from the vicinity of the root zone.

Irrigation can also be done extracting groundwater by (tube)wells. As a hydrological result it is found that the level of the water descends. The effects may be water mining, land/soil subsidence, and, along the coast, saltwater intrusion.

Irrigation projects can have large benefits, but the negative side effects are often overlooked.

Agricultural irrigation technologies such as high powered water pumps, dams, and pipelines are responsible for the large-scale depletion of fresh water resources such as aquifers, lakes, and rivers. As a result of this massive diversion of freshwater, lakes, rivers, and creeks are running dry, severely altering or stressing surrounding ecosystems, and contributing to the extinction of many aquatic species.

Agricultural land loss

Lal and Stewart estimated global loss of agricultural land by degradation and abandonment at 12 million hectares per year. In contrast, according to Scherr, GLASOD (Global Assessment of Human-Induced Soil Degradation, under the UN Environment Programme) estimated that 6 million hectares of agricultural land per year had been lost to soil degradation since the mid-1940s, and she noted that this magnitude is similar to earlier estimates by Dudal and by Rozanov et al. Such losses are attributable not only to soil erosion, but also to salinization, loss of nutrients and organic matter, acidification, compaction, water logging and subsidence. Human-induced land degradation tends to be particularly serious in dry regions. Focusing on soil properties, Oldeman estimated that about 19 million square kilometers of global land area had been degraded; Dregne and Chou, who included degradation of vegetation cover as well as soil, estimated about 36 million square kilometers degraded in the world's dry regions. Despite estimated losses of agricultural land, the amount of arable land used in crop production globally increased by about 9% from 1961 to 2012, and is estimated to have been 1.396 billion hectares in 2012.

Global average soil erosion rates are thought to be high, and erosion rates on conventional cropland generally exceed estimates of soil production rates, usually by more than an order of magnitude. In the US, sampling for erosion estimates by the US NRCS (Natural Resources Conservation Service) is statistically based, and estimation uses the Universal Soil Loss Equation and Wind Erosion Equation. For 2010, annual average soil loss by sheet, rill and wind erosion on non-federal US land was estimated to be 10.7 t/ha on cropland and 1.9 t/ha on pasture land; the average soil erosion rate on US cropland had been reduced by about 34% since 1982. No-till and low-till practices have become increasingly common on North American cropland used for production of grains such as wheat and barley. On uncultivated cropland, the recent average total soil loss has been 2.2 t/ha per year. In comparison with agriculture using conventional cultivation, it has been suggested that, because no-till agriculture produces erosion rates much closer to soil production rates, it could provide a foundation for sustainable agriculture.

Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable. Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. This is considered to be an important topic of the 21st century due to the implications land degradation has upon agronomic productivity, the environment, and its effects on food security. It is estimated that up to 40% of the world's agricultural land is seriously degraded.

Meat production

Environmental impacts associated with meat production include use of fossil energy, water and land resources, greenhouse gas emissions, and in some instances, rainforest clearing, water pollution and species endangerment, among other adverse effects. Steinfeld et al. of the FAO estimated that 18% of global anthropogenic GHG (greenhouse gas) emissions (estimated as 100-year carbon dioxide equivalents) are associated in some way with livestock production. FAO data indicate that meat accounted for 26% of global livestock product tonnage in 2011.

Globally, enteric fermentation (mostly in ruminant livestock) accounts for about 27% of anthropogenic methane emissions, Despite methane's 100-year global warming potential, recently estimated at 28 without and 34 with climate-carbon feedbacks, methane emission is currently contributing relatively little to global warming. Although reduction of methane emissions would have a rapid effect on warming, the expected effect would be small. Other anthropogenic GHG emissions associated with livestock production include carbon dioxide from fossil fuel consumption (mostly for production, harvesting and transport of feed), and nitrous oxide emissions associated with the use of nitrogenous fertilizers, growing of nitrogen-fixing legume vegetation and manure management. Management practices that can mitigate GHG emissions from production of livestock and feed have been identified.

Considerable water use is associated with meat production, mostly because of water used in production of vegetation that provides feed. There are several published estimates of water use associated with livestock and meat production, but the amount of water use assignable to such production is seldom estimated. For example, "green water" use is evapotranspirational use of soil water that has been provided directly by precipitation; and "green water" has been estimated to account for 94% of global beef cattle production's "water footprint", and on rangeland, as much as 99.5% of the water use associated with beef production is "green water".

Impairment of water quality by manure and other substances in runoff and infiltrating water is a concern, especially where intensive livestock production is carried out. In the US, in a comparison of 32 industries, the livestock industry was found to have a relatively good record of compliance with environmental regulations pursuant to the Clean Water Act and Clean Air Act, but pollution issues from large livestock operations can sometimes be serious where violations occur. Various measures have been suggested by the US Environmental Protection Agency, among others, which can help reduce livestock damage to streamwater quality and riparian environments.

Changes in livestock production practices influence the environmental impact of meat production, as illustrated by some beef data. In the US beef production system, practices prevailing in 2007 are estimated to have involved 8.6% less fossil fuel use, 16% less greenhouse gas emissions (estimated as 100-year carbon dioxide equivalents), 12% less withdrawn water use and 33% less land use, per unit mass of beef produced, than in 1977. From 1980 to 2012 in the US, while population increased by 38%, the small ruminant inventory decreased by 42%, the cattle-and-calves inventory decreased by 17%, and methane emissions from livestock decreased by 18%; yet despite the reduction in cattle numbers, US beef production increased over that period.

Some impacts of meat-producing livestock may be considered environmentally beneficial. These include waste reduction by conversion of human-inedible crop residues to food, use of livestock as an alternative to herbicides for control of invasive and noxious weeds and other vegetation management, use of animal manure as fertilizer as a substitute for those synthetic fertilizers that require considerable fossil fuel use for manufacture, grazing use for wildlife habitat enhancement, and carbon sequestration in response to grazing practices, among others. Conversely, according to some studies appearing in peer-reviewed journals, the growing demand for meat is contributing to significant biodiversity loss as it is a significant driver of deforestation and habitat destruction. Moreover, the 2019 Global Assessment Report on Biodiversity and Ecosystem Services by IPBES also warns that ever increasing land use for meat production plays a significant role in biodiversity loss. A 2006 Food and Agriculture Organization report, Livestock's Long Shadow, found that around 26% of the planet's terrestrial surface is devoted to livestock grazing.

Palm oil
Palm oil is a type of vegetable oil, found in oil palm trees, which are native to West and Central Africa. Initially used in foods in developing countries, palm oil is now also used in food, cosmetic and other types of products in other nations as well. Over one-third of vegetable oil consumed globally is palm oil.

Habitat loss
The consumption of palm oil in food, domestic and cosmetic products all over the world means there is a high demand for it. To meet this, oil palm plantations are created, which means removing natural forests to clear space. This deforestation has taken place in Asia, Latin America and West Africa, with Malaysia and Indonesia holding 90% of global oil palm trees. These forests are home to a wide range of species, including many endangered animals, ranging from birds to rhinos and tigers. Since 2000, 47% of deforestation has been for the purpose of growing oil palm plantations, with around 877,000 acres being affected per year.

Impact on biodiversity
Natural forests are extremely biodiverse, with a wide range of organisms using them as their habitat. But oil palm plantations are the opposite. Studies have shown that oil palm plantations have less than 1% of the plant diversity seen in natural forests, and 47–90% less mammal diversity. This is not because of the oil palm itself, but rather because the oil palm is the only habitat provided in the plantations. The plantations are therefore known as a monoculture, whereas natural forests contain a wide variety of flora and fauna, making them highly biodiverse. One of the ways palm oil could be made more sustainable (although it is still not the best option) is through agroforestry, whereby the plantations are made up of multiple types of plants used in trade – such as coffee or cocoa. While these are more biodiverse than monoculture plantations, they are still not as effective as natural forests. In addition to this, agroforestry does not bring as many economic benefits to workers, their families and the surrounding areas.

Roundtable on Sustainable Palm Oil (RSPO)
The RSPO is a non-profit organisation that has developed criteria that its members (of which, as of 2018, there are over 4,000) must follow to produce, source and use sustainable palm oil (Certified Sustainable Palm Oil; CSPO). Currently, 19% of global palm oil is certified by the RSPO as sustainable.

The CSPO criteria states that oil palm plantations cannot be grown in the place of forests or other areas with endangered species, fragile ecosystems, or those that facilitate the needs of local communities. It also calls for a reduction in pesticides and fires, along with several rules for ensuring the social wellbeing of workers and the local communities.

Environmental degradation

Human activity is causing environmental degradation, which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. As indicated by the I=PAT equation, environmental impact (I) or degradation is caused by the combination of an already very large and increasing human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource-depleting and polluting technology (T).

According to a 2021 study published in Frontiers in Forests and Global Change, roughly 3% of the planet's terrestrial surface is ecologically and faunally intact, meaning areas with healthy populations of native animal species and little to no human footprint. Many of these intact ecosystems were in areas inhabited by indigenous peoples.

Habitat fragmentation
According to a 2018 study in Nature, 87% of the oceans and 77% of land (excluding Antarctica) have been altered by anthropogenic activity, and 23% of the planet's landmass remains as wilderness.

Habitat fragmentation is the reduction of large tracts of habitat leading to habitat loss. Habitat fragmentation and loss are considered as being the main cause of the loss of biodiversity and degradation of the ecosystem all over the world. Human actions are greatly responsible for habitat fragmentation, and loss as these actions alter the connectivity and quality of habitats. Understanding the consequences of habitat fragmentation is important for the preservation of biodiversity and enhancing the functioning of the ecosystem.

Both agricultural plants and animals depend on pollination for reproduction. Vegetables and fruits are an important diet for human beings and depend on pollination. Whenever there is habitat destruction, pollination is reduced and crop yield as well. Many plants also rely on animals and most especially those that eat fruit for seed dispersal. Therefore, the destruction of habitat for animal severely affects all the plant species that depend on them.

Mass extinction
Biodiversity generally refers to the variety and variability of life on Earth, and is represented by the number of different species there are on the planet. Since its introduction, Homo sapiens (the human species) has been killing off entire species either directly (such as through hunting) or indirectly (such as by destroying habitats), causing the extinction of species at an alarming rate. Humans are the cause of the current mass extinction, called the Holocene extinction, driving extinctions to 100 to 1000 times the normal background rate. Though most experts agree that human beings have accelerated the rate of species extinction, some scholars have postulated without humans, the biodiversity of the Earth would grow at an exponential rate rather than decline. The Holocene extinction continues, with meat consumption, overfishing, ocean acidification and the amphibian crisis being a few broader examples of an almost universal, cosmopolitan decline in biodiversity. Human overpopulation (and continued population growth) along with overconsumption, especially by the super-affluent, are considered to be the primary drivers of this rapid decline. The 2017 World Scientists' Warning to Humanity stated that, among other things, this sixth extinction event unleashed by humanity could annihilate many current life forms and consign them to extinction by the end of this century. A 2022 scientific review published in Biological Reviews confirms that a biodiversity loss crisis caused by human activity, which the researchers describe as a sixth mass extinction event, is currently underway.

A June 2020 study published in PNAS argues that the contemporary extinction crisis "may be the most serious environmental threat to the persistence of civilization, because it is irreversible" and that its acceleration "is certain because of the still fast growth in human numbers and consumption rates."

Biodiversity loss

It has been estimated that from 1970 to 2016, 68% of the world's wildlife has been destroyed due to human activity. In South America, there is believed to be a 70 percent loss. A May 2018 study published in PNAS found that 83% of wild mammals, 80% of marine mammals, 50% of plants and 15% of fish have been lost since the dawn of human civilization. Currently, livestock make up 60% of the biomass of all mammals on earth, followed by humans (36%) and wild mammals (4%). According to the 2019 global biodiversity assessment by IPBES, human civilization has pushed one million species of plants and animals to the brink of extinction, with many of these projected to vanish over the next few decades.

When plant biodiversity declines, the remaining plants face diminishing productivity. Biodiversity loss threatens ecosystem productivity and services such as food, fresh water, raw materials and medicinal resources.

A 2019 report that assessed a total of 28,000 plant species concluded that close to half of them were facing a threat of extinction. The failure of noticing and appreciating plants is regarded as "plant blindness", and this is a worrying trend as it puts more plants at the threat of extinction than animals. Our increased farming has come at a higher cost to plant biodiversity as half of the habitable land on Earth is used for agriculture, and this is one of the major reasons behind the plant extinction crisis.

Defaunation is the loss of animals from ecological communities.

Invasive species
Invasive species are defined by the U.S. Department of Agriculture as non-native to the specific ecosystem, and whose presence is likely to harm the health of humans or the animals in said system''. ''

Introductions of non-native species into new areas have brought about major and permanent changes to the environment over large areas. Examples include the introduction of Caulerpa taxifolia into the Mediterranean, the introduction of oat species into the California grasslands, and the introduction of privet, kudzu, and purple loosestrife to North America. Rats, cats, and goats have radically altered biodiversity in many islands. Additionally, introductions have resulted in genetic changes to native fauna where interbreeding has taken place, as with buffalo with domestic cattle, and wolves with domestic dogs.

Cats
Domestic and feral cats globally are particularly notorious for their destruction of native birds and other animal species. This is especially true for Australia, which attributes over two-thirds of mammal extinction to domestic and feral cats, and over 1.5 billion deaths to native animals each year. Because domesticated outside cats are fed by their owners, they can continue to hunt even when prey populations decline and they would otherwise go elsewhere. This is a major problem for places where there is a highly diverse and dense number of lizards, birds, snakes, and mice populating the area. Roaming outdoor cats can also be attributed to the transmission of harmful diseases like rabies and toxoplasmosis to the native wildlife population.

Burmese Python
Another example of a destructive introduced invasive species is the Burmese Python. Originating from parts of Southeast Asia, the Burmese Python has made the most notable impact in the Southern Florida Everglades of the United States. After a breeding facility breach in 1992 due to flooding and snake owners releasing unwanted pythons back into the wild, the population of the Burmese Python would boom in the warm climate of Florida in the following years. This impact has been felt most significantly at the southernmost regions of the Everglades. A study in 2012 compared native species population counts in Florida from 1997 and found that raccoon populations declined 99.3%, opossums 98.9%, and rabbit/fox populations effectively disappeared

Hybrid boars
In the 1980s, Canadian pig farmers introduced wild boars from the United Kingdom into their breeding programs, leading to a hybrid with more meat. However, when the pork market collapsed in 2001, many of these hybrids were released into the wild. These hybrids, now numbering around 62,000 are thriving in the Canadian prairies due to their adaptation to harsh winters, with thick fur and long legs, and tusks sharp enough to dig through soil for food. They cause significant agricultural damage and have grown to a point where even substantial culling efforts are insufficient. This issue has escalated to the extent that these boars are starting to migrate into northern US states, raising concerns about potential crop damage and the spread of diseases like African swine flu, which could severely impact the pork industry.

Water pollution
Domestic, industrial and agricultural wastewater can be treated in wastewater treatment plants for treatment before being released into aquatic ecosystems. Treated wastewater still contains a range of different chemical and biological contaminants which may influence surrounding ecosystems.

Climate change

Contemporary climate change is the result of increasing atmospheric greenhouse gas concentrations, which is caused primarily by combustion of fossil fuel (coal, oil, natural gas), and by deforestation, land use changes, and cement production. Such massive alteration of the global carbon cycle has only been possible because of the availability and deployment of advanced technologies, ranging in application from fossil fuel exploration, extraction, distribution, refining, and combustion in power plants and automobile engines and advanced farming practices.

Livestock contributes to climate change both through the production of greenhouse gases and through destruction of carbon sinks such as rain-forests. According to the 2006 United Nations/FAO report, 18% of all greenhouse gas emissions found in the atmosphere are due to livestock. The raising of livestock and the land needed to feed them has resulted in the destruction of millions of acres of rainforest and as global demand for meat rises, so too will the demand for land. Ninety-one percent of all rainforest land deforested since 1970 is now used for livestock.

Acid deposition
The fossils that are burned by humans for energy usually come back to them in the form of acid rain. Acid rain is a form of precipitation which has high sulfuric and nitric acids which can occur in the form of a fog or snow. Acid rain has numerous ecological impacts on streams, lakes, wetlands and other aquatic environments. It damages forests, robs the soil of its essential nutrients, releases aluminium to the soil, which makes it very hard for trees to absorb water.

Researchers have discovered that kelp, eelgrass and other vegetation can effectively absorb carbon dioxide and hence reducing ocean acidity. Scientists, therefore, say that growing these plants could help in mitigating the damaging effects of acidification on marine life.

Disruption of the nitrogen cycle
Of particular concern is N2O, which has an average atmospheric lifetime of 114–120 years, and is 300 times more effective than CO2 as a greenhouse gas. NOx produced by industrial processes, automobiles and agricultural fertilization and NH3 emitted from soils (i.e., as an additional byproduct of nitrification) and livestock operations are transported to downwind ecosystems, influencing N cycling and nutrient losses. Six major effects of NOx and NH3 emissions have been identified:
 * 1) decreased atmospheric visibility due to ammonium aerosols (fine particulate matter [PM])
 * 2) elevated ozone concentrations
 * 3) ozone and PM affects human health (e.g. respiratory diseases, cancer)
 * 4) increases in radiative forcing and global warming
 * 5) decreased agricultural productivity due to ozone deposition
 * 6) ecosystem acidification and eutrophication.

Technology impacts
The applications of technology often result in unavoidable and unexpected environmental impacts, which according to the I = PAT equation is measured as resource use or pollution generated per unit GDP. Environmental impacts caused by the application of technology are often perceived as unavoidable for several reasons. First, given that the purpose of many technologies is to exploit, control, or otherwise "improve" upon nature for the perceived benefit of humanity while at the same time, the myriad of processes in nature have been optimized and are continually adjusted by evolution, any disturbance of these natural processes by technology is likely to result in negative environmental consequences. Second, the conservation of mass principle and the first law of thermodynamics (i.e., conservation of energy) dictate that whenever material resources or energy are moved around or manipulated by technology, environmental consequences are inescapable. Third, according to the second law of thermodynamics, order can be increased within a system (such as the human economy) only by increasing disorder or entropy outside the system (i.e., the environment). Thus, technologies can create "order" in the human economy (i.e., order as manifested in buildings, factories, transportation networks, communication systems, etc.) only at the expense of increasing "disorder" in the environment. According to several studies, increased entropy is likely to correlate to negative environmental impacts.

Mining industry

The environmental impact of mining includes erosion, formation of sinkholes, loss of biodiversity, and contamination of soil, groundwater and surface water by chemicals from mining processes. In some cases, additional forest logging is done in the vicinity of mines to increase the available room for the storage of the created debris and soil.

Even though plants need some heavy metals for their growth, excess of these metals is usually toxic to them. Plants that are polluted with heavy metals usually depict reduced growth, yield and performance. Pollution by heavy metals decreases the soil organic matter composition resulting in a decline in soil nutrients which then leads to a decline in the growth of plants or even death.

Besides creating environmental damage, the contamination resulting from leakage of chemicals also affect the health of the local population. Mining companies in some countries are required to follow environmental and rehabilitation codes, ensuring the area mined is returned to close to its original state. Some mining methods may have significant environmental and public health effects. Heavy metals usually exhibit toxic effects towards the soil biota, and this is through the affection of the microbial processes and decreases the number as well as activity of soil microorganisms. Low concentration of heavy metals also has high chances of inhibiting the plant's physiological metabolism.

Energy industry

The environmental impact of energy harvesting and consumption is diverse. In recent years there has been a trend towards the increased commercialization of various renewable energy sources.

In the real world, consumption of fossil fuel resources leads to global warming and climate change. However, little change is being made in many parts of the world. If the peak oil theory proves true, more explorations of viable alternative energy sources, could be more friendly to the environment.

Rapidly advancing technologies can achieve a transition of energy generation, water and waste management, and food production towards better environmental and energy usage practices using methods of systems ecology and industrial ecology.

Biodiesel
The environmental impact of biodiesel includes energy use, greenhouse gas emissions and some other kinds of pollution. A joint life cycle analysis by the US Department of Agriculture and the US Department of Energy found that substituting 100% biodiesel for petroleum diesel in buses reduced life cycle consumption of petroleum by 95%. Biodiesel reduced net emissions of carbon dioxide by 78.45%, compared with petroleum diesel. In urban buses, biodiesel reduced particulate emissions 32 percent, carbon monoxide emissions 35 percent, and emissions of sulfur oxides 8%, relative to life cycle emissions associated with use of petroleum diesel. Life cycle emissions of hydrocarbons were 35% higher and emission of various nitrogen oxides (NOx) were 13.5% higher with biodiesel. Life cycle analyses by the Argonne National Laboratory have indicated reduced fossil energy use and reduced greenhouse gas emissions with biodiesel, compared with petroleum diesel use. Biodiesel derived from various vegetable oils (e.g. canola or soybean oil), is readily biodegradable in the environment compared with petroleum diesel.

Coal mining and burning
The environmental impact of coal mining and -burning is diverse. Legislation passed by the US Congress in 1990 required the United States Environmental Protection Agency (EPA) to issue a plan to alleviate toxic air pollution from coal-fired power plants. After delay and litigation, the EPA now has a court-imposed deadline of 16 March 2011, to issue its report. Surface coal mining has the greatest impact on the environment due to its unique extraction process requiring drilling and blasting, which releases macro amounts of airborne particles into the air. This airborne particulate matter releases harmful toxins into the atmosphere such as ammonia, carbon monoxide, and nitrogen oxides. These toxins then lead to many detrimental health effects such as respiratory illnesses and cardiovascular disease. Although coal is the most widely utilized source of energy around the world, the burning of coal emits poisonous toxins into the air, leading to various health ailments of the skin, blood and lung diseases, and various forms of cancer, while also contributing to global warming by the emission of these toxins into the environment. The technology for mining activity has advanced over the years, leading to an increase in mine waste leading to more pollution problems, according to the Safe Drinking Water Foundation Studies that have been conducted in various countries like India, have proven that coal mining has a detrimental effect on other biotic and abiotic factors including vegetation and soil, leading to a decrease in plant populations in mining sites

Nuclear power
The environmental impact of nuclear power results from the nuclear fuel cycle processes including mining, processing, transporting and storing fuel and radioactive fuel waste. Released radioisotopes pose a health danger to human populations, animals and plants as radioactive particles enter organisms through various transmission routes.

Radiation is a carcinogen and causes numerous effects on living organisms and systems. The environmental impacts of nuclear power plant disasters such as the Chernobyl disaster, the Fukushima Daiichi nuclear disaster and the Three Mile Island accident, among others, persist indefinitely, though several other factors contributed to these events including improper management of fail safe systems and natural disasters putting uncommon stress on the generators. The radioactive decay rate of particles varies greatly, dependent upon the nuclear properties of a particular isotope. Radioactive Plutonium-244 has a half-life of 80.8 million years, which indicates the time duration required for half of a given sample to decay, though very little plutonium-244 is produced in the nuclear fuel cycle and lower half-life materials have lower activity thus giving off less dangerous radiation.

Oil shale industry
The environmental impact of the oil shale industry includes the consideration of issues such as land use, waste management, water and air pollution caused by the extraction and processing of oil shale. Surface mining of oil shale deposits causes the usual environmental impacts of open-pit mining. In addition, the combustion and thermal processing generate waste material, which must be disposed of, and harmful atmospheric emissions, including carbon dioxide, a major greenhouse gas. Experimental in-situ conversion processes and carbon capture and storage technologies may reduce some of these concerns in future, but may raise others, such as the pollution of groundwater.

Petroleum
The environmental impact of petroleum is often negative because it is toxic to almost all forms of life. Petroleum, a common word for oil or natural gas, is closely linked to virtually all aspects of present society, especially for transportation and heating for both homes and for commercial activities.

Reservoirs
The environmental impact of reservoirs is coming under ever increasing scrutiny as the world demand for water and energy increases and the number and size of reservoirs increases.

Dams and the reservoirs can be used to supply drinking water, generate hydroelectric power, increasing the water supply for irrigation, provide recreational opportunities and flood control. However, adverse environmental and sociological impacts have also been identified during and after many reservoir constructions. Although the impact varies greatly between different dams and reservoirs, common criticisms include preventing sea-run fish from reaching their historical mating grounds, less access to water downstream, and a smaller catch for fishing communities in the area. Advances in technology have provided solutions to many negative impacts of dams but these advances are often not viewed as worth investing in if not required by law or under the threat of fines. Whether reservoir projects are ultimately beneficial or detrimental—to both the environment and surrounding human populations— has been debated since the 1960s and probably long before that. In 1960 the construction of Llyn Celyn and the flooding of Capel Celyn provoked political uproar which continues to this day. More recently, the construction of Three Gorges Dam and other similar projects throughout Asia, Africa and Latin America have generated considerable environmental and political debate.

Cleaning agents
The environmental impact of cleaning agents is diverse. In recent years, measures have been taken to reduce these effects.

Nanotechnology
Nanotechnology's environmental impact can be split into two aspects: the potential for nanotechnological innovations to help improve the environment, and the possibly novel type of pollution that nanotechnological materials might cause if released into the environment. As nanotechnology is an emerging field, there is great debate regarding to what extent industrial and commercial use of nanomaterials will affect organisms and ecosystems.

Paint
The environmental impact of paint is diverse. Traditional painting materials and processes can have harmful effects on the environment, including those from the use of lead and other additives. Measures can be taken to reduce environmental impact, including accurately estimating paint quantities so that wastage is minimized, use of paints, coatings, painting accessories and techniques that are environmentally preferred. The United States Environmental Protection Agency guidelines and Green Star ratings are some of the standards that can be applied.

Plastics
Some scientists suggest that by 2050 there could be more plastic than fish in the oceans. A December 2020 study published in Nature found that human-made materials, or anthropogenic mass, exceeds all living biomass on earth, with plastic alone outweighing the mass of all terrestrial and marine animals combined.

Pesticides
The environmental impact of pesticides is often greater than what is intended by those who use them. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, including nontarget species, air, water, bottom sediments, and food. Pesticide contaminates land and water when it escapes from production sites and storage tanks, when it runs off from fields, when it is discarded, when it is sprayed aerially, and when it is sprayed into water to kill algae.

The amount of pesticide that migrates from the intended application area is influenced by the particular chemical's properties: its propensity for binding to soil, its vapor pressure, its water solubility, and its resistance to being broken down over time. Factors in the soil, such as its texture, its ability to retain water, and the amount of organic matter contained in it, also affect the amount of pesticide that will leave the area. Some pesticides contribute to global warming and the depletion of the ozone layer.

Transport
The environmental impact of transport is significant because it is a major user of energy, and burns most of the world's petroleum. This creates air pollution, including nitrous oxides and particulates, and is a significant contributor to global warming through emission of carbon dioxide, for which transport is the fastest-growing emission sector. By subsector, road transport is the largest contributor to global warming.

Environmental regulations in developed countries have reduced the individual vehicles emission; however, this has been offset by an increase in the number of vehicles, and more use of each vehicle. Some pathways to reduce the carbon emissions of road vehicles considerably have been studied. Energy use and emissions vary largely between modes, causing environmentalists to call for a transition from air and road to rail and human-powered transport, and increase transport electrification and energy efficiency.

Other environmental impacts of transport systems include traffic congestion and automobile-oriented urban sprawl, which can consume natural habitat and agricultural lands. By reducing transportation emissions globally, it is predicted that there will be significant positive effects on Earth's air quality, acid rain, smog and climate change.

The health impact of transport emissions is also of concern. A recent survey of the studies on the effect of traffic emissions on pregnancy outcomes has linked exposure to emissions to adverse effects on gestational duration and possibly also intrauterine growth.

Aviation
The environmental impact of aviation occurs because aircraft engines emit noise, particulates, and gases which contribute to climate change and global dimming. Despite emission reductions from aircraft engines and more fuel-efficient and less polluting turbofan and turboprop engines, the rapid growth of air travel in recent years contributes to an increase in total pollution attributable to aviation. In the EU, greenhouse gas emissions from aviation increased by 87% between 1990 and 2006. Among other factors leading to this phenomenon are the increasing number of hypermobile travellers and social factors that are making air travel commonplace, such as frequent flyer programs.

There is an ongoing debate about possible taxation of air travel and the inclusion of aviation in an emissions trading scheme, with a view to ensuring that the total external costs of aviation are taken into account.

Roads
The environmental impact of roads includes the local effects of highways (public roads) such as on noise pollution, light pollution, water pollution, habitat destruction/disturbance and local air quality; and the wider effects including climate change from vehicle emissions. The design, construction and management of roads, parking and other related facilities as well as the design and regulation of vehicles can change the impacts to varying degrees.

Shipping
The environmental impact of shipping includes greenhouse gas emissions and oil pollution. In 2007, carbon dioxide emissions from shipping were estimated at 4 to 5% of the global total, and estimated by the International Maritime Organization (IMO) to rise by up to 72% by 2020 if no action is taken. There is also a potential for introducing invasive species into new areas through shipping, usually by attaching themselves to the ship's hull.

The First Intersessional Meeting of the IMO Working Group on Greenhouse Gas Emissions from Ships took place in Oslo, Norway on 23–27 June 2008. It was tasked with developing the technical basis for the reduction mechanisms that may form part of a future IMO regime to control greenhouse gas emissions from international shipping, and a draft of the actual reduction mechanisms themselves, for further consideration by IMO's Marine Environment Protection Committee (MEPC).

Military

General military spending and military activities have marked environmental effects. The United States military is considered one of the worst polluters in the world, responsible for over 39,000 sites contaminated with hazardous materials. Several studies have also found a strong positive correlation between higher military spending and higher carbon emissions where increased military spending has a larger effect on increasing carbon emissions in the Global North than in the Global South. Military activities also affect land use and are extremely resource-intensive.

The military does not solely have negative effects on the environment. There are several examples of militaries aiding in land management, conservation, and greening of an area. Additionally, certain military technologies have proven extremely helpful for conservationists and environmental scientists.

As well as the cost to human life and society, there is a significant environmental impact of war. Scorched earth methods during, or after war have been in use for much of recorded history but with modern technology war can cause a far greater devastation on the environment. Unexploded ordnance can render land unusable for further use or make access across it dangerous or fatal.

Light pollution

Artificial light at night is one of the most obvious physical changes that humans have made to the biosphere, and is the easiest form of pollution to observe from space. The main environmental impacts of artificial light are due to light's use as an information source (rather than an energy source). The hunting efficiency of visual predators generally increases under artificial light, changing predator prey interactions. Artificial light also affects dispersal, orientation, migration, and hormone levels, resulting in disrupted circadian rhythms.

Fast fashion
Fast fashion has become one of the most successful industries in many capitalist societies with the increase in globalisation. Fast fashion is the cheap mass production of clothing, which is then sold on at very low prices to consumers. Today, the industry is worth £2 trillion.

Environmental impacts
In terms of carbon dioxide emissions, the fast fashion industry contributes between 4–5 billion tonnes per year, equating to 8–10% of total global emissions. Carbon dioxide is a greenhouse gas, meaning it causes heat to get trapped in the atmosphere, rather than being released into space, raising the Earth's temperature – known as global warming.

Alongside greenhouse gas emissions the industry is also responsible for almost 35% of microplastic pollution in the oceans. Scientists have estimated that there are approximately 12–125 trillion tonnes of microplastic particles in the Earth's oceans. These particles are ingested by marine organisms, including fish later eaten by humans. The study states that many of the fibres found are likely to have come from clothing and other textiles, either from washing, or degradation.

Textile waste is a huge issue for the environment, with around 2.1 billion tonnes of unsold or faulty clothing being disposed per year. Much of this is taken to landfill, but the majority of materials used to make clothes are not biodegradable, resulting in them breaking down and contaminating soil and water.

Fashion, much like most other industries such as agriculture, requires a large volume of water for production. The rate and quantity at which clothing is produced in fast fashion means the industry uses 79 trillion litres of water every year. Water consumption has proven to be very detrimental to the environment and its ecosystems, leading to water depletion and water scarcity. Not only do these affect marine organisms, but also human's food sources, such as crops. The industry is culpable for roughly one-fifth of all industrial water pollution.

Warnings by the scientific community
There are many publications from the scientific community to warn everyone about growing threats to sustainability, in particular threats to "environmental sustainability". The World Scientists' Warning to Humanity in 1992 begins with: "Human beings and the natural world are on a collision course". About 1,700 of the world's leading scientists, including most Nobel Prize laureates in the sciences, signed this warning letter. The letter mentions severe damage to the atmosphere, oceans, ecosystems, soil productivity, and more. It said that if humanity wants to prevent the damage, steps need to be taken: better use of resources, abandonment of fossil fuels, stabilization of human population, elimination of poverty and more. More warning letters were signed in 2017 and 2019 by thousands of scientists from over 150 countries which called again to reduce overconsumption (including eating less meat), reducing fossil fuels use and other resources and so forth.

title: Human impact on the environment


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Steven Osborne (pianist)

Steven George McNeil Osborne (born 12 March 1971) is a Scottish pianist who has performed concertos and solo recitals worldwide.

He was taught by Richard Beauchamp at St Mary's Music School in Edinburgh before going to the Royal Northern College of Music in Manchester to study under Renna Kellaway. After graduating, Osborne went on to win first prize in the prestigious Clara Haskil International Piano Competition in Switzerland in 1991 and the Naumburg International Competition in New York in May 1997. In 1999 he was selected as BBC New Generation Artist in the first year of the scheme.

His recording career began when he was signed to Hyperion Records in 1998 and has resulted in bi-annual recordings. The first disc with the BBC Scottish Symphony Orchestra celebrated Osborne's Scottish musical heritage with a pairing of Sir Alexander Mackenzie's Scottish Concerto alongside Sir Donald Tovey's Piano Concerto in A, winning a BBC Music Magazine 'Best of the Year' and a Gramophone 'Critics Choice' award. His subsequent disc was a recording of works by the contemporary Russian composer Nikolai Kapustin - including 13 of his 24 Preludes in Jazz Style – which won a Deutscher Schallplattenpreis. The disc that brought Osborne to international attention was his recording of Olivier Messiaen's epic Vingt regards sur l'enfant-Jésus in 2002. His on-going contract with Hyperion has resulted in two Gramophone Awards (Britten's Piano Concerto in 2009, Mussorgsky and Prokofiev in 2013), two Schallplattenpreis awards (Rachmaninoff's 24 Preludes, and Britten's Complete Works for Piano and Orchestra) together with numerous nominations.

Concerto performances take Steven Osborne to orchestras all over the world, including the Yomiuri Nippon Symphony Orchestra, Berlin Symphony, Deutsches Symphonie-Orchester Berlin, Salzburg Mozarteum Orchestra, Finnish Radio Symphony Orchestra, Bergen Philharmonic Orchestra, Residentie Orkest, Sydney Symphony Orchestra, Hong Kong Philharmonic Orchestra and the Dallas Symphony Orchestra. With these orchestras he has collaborated with conductors including Christoph von Dohnányi, Alan Gilbert, Vladimir Ashkenazy, Ludovic Morlot, Leif Segerstam, Andrew Litton, Ingo Metzmacher, Vladimir Jurowski and Jukka-Pekka Saraste.

Steven Osborne has returned almost annually to the BBC Proms – where his programmes have ranged from Mahler's Des Knaben Wunderhorn with Alice Coote (2009), Rachmaninoff's 1st Piano Concerto (2010) with the Ulster Orchestra under Paul Watkins, to Falla's Nights in the Gardens of Spain (2011), Grieg's Piano Concerto with the BBC Philharmonic Orchestra under John Storgårds (2012), and Messiaen's Turangalîla-Symphonie with Valérie Hartmann-Claverie and the BBC Philharmonic Orchestra under Juanjo Mena (2015). At the Edinburgh Festival he has appeared both as a soloist and chamber musician performing with just a few of his long-term collaborators Christian Tetzlaff, Alban Gerhardt, Paul Lewis and Lisa Batiashvili. In July 2015, Steven was announced as the first ever Patron of Lammermuir Festival in time for his second appearance at the Festival in September of the same year.

Honours and awards
In 2014 Osborne was elected a Fellow of the Royal Society of Edinburgh.

He was appointed an Officer of the Order of the British Empire (OBE) in the 2022 New Year Honours for services to music.

title: Steven Osborne (pianist)