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Impact of Fossil Fuel Emissions on the Biosphere and Global Warming

Learn how fossil fuel emissions affect the biosphere, creating pollutants like smog and acid rain. Understand the greenhouse effect, air pollution, and global warming trends.

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Impact of Fossil Fuel Emissions on the Biosphere and Global Warming

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  1. KEY CONCEPT Fossil fuel emissions affect the biosphere.

  2. Pollutants accumulate in the air. • Pollution is any undesirable factor added to the air, water, or soil. • Smog is one type of air pollution. • sunlight interacts with pollutants in the air • pollutants produced by fossil fuel emissions • made of particulates and ground-level ozone

  3. Acid rain is caused by fossil fuel emissions. • produced when pollutants in the water cycle cause rain pH to drop • can lower the pH of a lake or stream • can harm trees • Smog can be harmful to human health.

  4. carbon dioxide(CO2) methane (CH4) water (H2O) • The greenhouse effect slows the release of energy from Earth’s atmosphere. • sunlight penetrates Earth’s atmosphere • energy is absorbed and reradiated as heat • greenhouse gases absorb longer wavelengths • Greenhousegas moleculesrereleaseinfraredradiation

  5. Air pollution is changing Earth’s biosphere. • The levels of atmospheric carbon dioxide rise and fall over time. • High levels of carbon dioxide are typical of Earth’s warmer periods.

  6. Global warming refers to the trend of increasing global temperatures. North Pole

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