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  • Pollution - Education | National Geographic Society
    Pollution is the introduction of harmful materials into the environment These harmful materials are called pollutants
  • Air Pollution - Education
    Air pollution is most common in large cities where emissions from many different sources are concentrated Mountains or tall buildings in and around cities can prevent air pollution from spreading This air pollution, called smog, often appears as a cloud making the air murky
  • What Is Water Pollution? - National Geographic Society
    When asked what water pollution is, most students can readily explain pollution as trash thrown away by humans that enters our water Students can readily identify items visible to the naked eye, such as cigarette butts, plastic bottles, and bags
  • Noise Pollution - National Geographic Society
    Noise pollution can cause health problems for people and wildlife, both on land and in the sea From traffic noise to rock concerts, loud or inescapable sounds can cause hearing loss, stress, and high blood pressure
  • Human Impacts on the Environment - Education
    Humans impact the physical environment in many ways: pollution, burning fossil fuels, deforestation, and more Changes like these have triggered climate change, soil erosion, poor air quality, mass extinction, and undrinkable water, among other effects
  • Marine Pollution - Education
    Marine pollution is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide
  • Marine Pollution - National Geographic Society
    Marine pollution is a combination of chemicals and trash, most of which comes from land sources and is washed or blown into the ocean This pollution results in damage to the environment, to the health of all organisms, and to economic structures worldwide
  • Light Pollution - National Geographic Society
    Light pollution, the excessive or inappropriate use of outdoor artificial light, is affecting human health, wildlife behavior, and our ability to observe stars and other celestial objects That Earthly Sky Glow Light pollution is a global issue
  • Light Pollution - Education
    There is a global movement to reduce light pollution, and everyone can help People all over the world are living under the nighttime glow of artificial light, and it is causing big problems for humans, wildlife, and the environment
  • Light Pollution - Education
    There is a global movement to reduce light pollution, and everyone can help People all over the world are living under the nighttime glow of artificial light, and it is causing big problems for humans, wildlife, and the environment





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