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  1. Pollution - National Geographic Society

    Apr 23, 2025 · Reducing pollution requires environmental, political, and economic leadership. Developed nations must work to reduce and recycle their materials, while developing nations …

  2. Marine Pollution - National Geographic Society

    Apr 23, 2025 · Marine pollution is a growing problem in today’s world. Our ocean is being flooded with two main types of pollution: chemicals and trash. Chemical contamination, or nutrient …

  3. Air Pollution - Education

    Jun 5, 2025 · Most air pollution is created by people burning fossil fuels, which include coal, natural gas and oil. Problems with human-caused air pollution began in the mid-1700s, when …

  4. Noise Pollution - Education

    Mar 6, 2024 · 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 …

  5. "Sea to Source: Ganges" Dispatch: The River Just Needs to Flow

    Jun 15, 2019 · Untreated sewage is one of the main causes of pollution in the river. “India’s river system are also its sewers,” explain Professors Assa Doron and Robin Jeffrey in their book, …

  6. Light Pollution - National Geographic Society

    Apr 10, 2025 · 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 …

  7. 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 …

  8. What Is Water Pollution? - National Geographic Society

    Jan 8, 2025 · 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 …

  9. Point Source and Nonpoint Sources of Pollution - Education

    Oct 1, 2024 · Factories and power plants can be a source of point-source pollution, affecting both air and water. Smokestacks may spew carbon monoxide, heavy metal, sulfur dioxide, nitrogen …

  10. The World's Plastic Pollution Crisis Explained - Education

    Oct 19, 2023 · Plastic pollution has become one of the most pressing environmental issues, as rapidly increasing production of disposable plastic products overwhelms the world’s ability to …