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Annual CO 2 emissions, total by country (2017 data) shows the U.S. trails China in total annual emissions (not per capita). Environmental issues in the United States include climate change, energy, species conservation, invasive species, deforestation, mining, nuclear accidents, pesticides, pollution, waste and over-population.
Climate change has led to the United States warming by 2.6 °F (1.4 °C) since 1970. [ 3 ] The climate of the United States is shifting in ways that are widespread and varied between regions. [ 4 ][ 5 ] From 2010 to 2019, the United States experienced its hottest decade on record. [ 6 ]
The United States is part of North America. The environment of the United States comprises diverse biotas, climates, and geologies. This diversity leads to a number of different distinct regions and geographies in which human communities live. This includes a rich variety of species of animals, fungi, plants and other organisms.
Since the major environmental legislation of the 1970s was enacted, great progress has been made in some areas, but the environmental protection has come at a high price. Between 1970 and 1996, air pollutants dropped 32% while the population grew by 29%. Other pollutants have been more difficult to track, especially water pollutants.
Cumulatively, the United States has emitted over a trillion metric tons of greenhouse gases, more than any country in the world. [1] Climate change policy is developed at the local, [need quotation to verify] state, and federal levels of government. [2] The Environmental Protection Agency (EPA) defines climate change as "any significant change ...
The majority of deforestation took place prior to 1910 with the Forest Service reporting the minimum forestation as 721,000,000 acres (2,920,000 km 2) around 1920. [2] The forest resources of the United States remained relatively constant through the 20th century. [3] The Forest Service reported total forestation as 766,000,000 acres (3,100,000 ...
Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and industry, although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1] Extensive industrialization and rapid urban growth ...
As with many countries, pollution in the United States is a concern for environmental organizations, government agencies and individuals. Pollution from U.S. manufacturing has declined massively since 1990 (despite an increase in production). A 2018 study in the American Economic Review found that environmental regulation is the primary driver ...