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  2. Environmental issues - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues

    [3] Environment destruction caused by humans is a global, ongoing problem. [4] Water pollution also cause problems to marine life. [5] Some scholars believe that the projected peak global population of roughly 9-10 billion people could live sustainably within the earth's ecosystems if humans worked to live sustainably within planetary boundaries.

  3. Human impact on the environment - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    Water pollution also reduces the ecosystem services such as drinking water provided by the water resource. Sources of water pollution are either point sources or non-point sources. [156] Point sources have one identifiable cause, such as a storm drain, a wastewater treatment plant, or an oil spill. Non-point sources are more diffuse.

  4. Pollution - Wikipedia

    en.wikipedia.org/wiki/Pollution

    Pollution is the introduction of contaminants into the natural environment that cause harm. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

  5. 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.

  6. Marine pollution - Wikipedia

    en.wikipedia.org/wiki/Marine_pollution

    Marine pollution made further international headlines after the 1967 crash of the oil tanker Torrey Canyon, and after the 1969 Santa Barbara oil spill off the coast of California. [citation needed] Marine pollution was a major area of discussion during the 1972 United Nations Conference on the Human Environment, held in Stockholm.

  7. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    1-3: Enjoy your usual outdoor activities. Ideal air quality for outdoor activities. Moderate Risk: 4-6: Consider reducing or rescheduling strenuous activities outdoors if you are experiencing symptoms. No need to modify your usual outdoor activities unless you experience symptoms such as coughing and throat irritation. High Risk: 7-10

  8. Air pollution in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_the...

    Estimated air pollution in London from 1700 to 2016. Air pollution is often assumed to have begun with the Industrial Revolution, but it's a much older problem. [15] Mining has existed in Great Britain since prehistoric times and lead mines (such as Charterhouse in Somerset and Odin Mine in Derbyshire) may have been worked before Roman Britain.

  9. Groundwater pollution - Wikipedia

    en.wikipedia.org/wiki/Groundwater_pollution

    Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.

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