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  2. Soil contamination - Wikipedia

    en.wikipedia.org/wiki/Soil_contamination

    Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste .

  3. 2021 in the environment - Wikipedia

    en.wikipedia.org/wiki/2021_in_the_environment

    This is an article of notable issues relating to the terrestrial environment of Earth in 2021.They relate to environmental events such as natural disasters, environmental sciences such as ecology and geoscience with a known relevance to contemporary influence of humanity on Earth, environmental law, conservation, environmentalism with major worldwide impact and environmental issues

  4. Pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_the_United_States

    Pollution from the Exxon Valdez oil spill. As with many countries, pollution in the United States is a concern for environmental organizations, government agencies, and individuals. Billions of pounds of toxic chemicals are released into the air, land, and waterways in the U.S. each year.

  5. Environmental issues in the United States - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    Pollution from the Exxon Valdez oil spill. As with many countries, pollution in the United States is a concern for environmental organizations, government agencies, and individuals. Billions of pounds of toxic chemicals are released into the air, land, and waterways in the U.S. each year.

  6. 2021 in climate change - Wikipedia

    en.wikipedia.org/wiki/2021_in_climate_change

    2 March 2023: a study published in Science said that boreal fires, typically accounting for 10% of global fire CO 2 emissions, contributed 23% in 2021, by far the highest fraction since 2000. [59] 2021 was an abnormal year because North American and Eurasian boreal forests synchronously experienced their greatest water deficit. [59]

  7. Land degradation - Wikipedia

    en.wikipedia.org/wiki/Land_degradation

    Overgrazing by livestock can lead to land degradation. Land degradation is a process where land becomes less healthy and productive due to a combination of human activities or natural conditions. The causes for land degradation are numerous and complex. [1] Human activities are often the main cause, such as unsustainable land management practices.