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Environmental Health: A Call to Action for a Sustainable Future

The survival of all living things depends on the health and integrity of the earth. Explore overpopulation, pollution, air, water, land, and global warming. Learn about world population growth, solutions to overpopulation, air pollution sources and solutions, land pollution, and the impact of global warming. Address the pressing environmental challenges we face today.

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Environmental Health: A Call to Action for a Sustainable Future

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  1. The survival of all living things Depends on the health & integrity of the earth: environmental health

  2. Environmental Health: Considerations • Overpopulation • Pollution • Air • Water • Land • Global warming

  3. Overpopulation: Capacity • Food • Water • Air • Shelter • Natural resources • Ecosysystems • Forests, tropical rain forests, deserts, ocean, tundra • Quality of life

  4. World Population Growth, 1950-2050 (Projected)

  5. Overpopulation • United Nations projects world population to increase from 6.4 billion to 9.4 billion by 2050 and to 11.5 billion by 2150 • Population increase is expected to occur mostly in poor countries • Overpopulation threats are most evident in Latin America, Africa, and parts of Asia • India is projected to have the largest increase in population and surpass China as the most populous country • The United States consumes far more energy and raw materials per person than any other nation on earth

  6. A Solution to Overpopulation Zero Population Growth: two offspring per couple

  7. Zero Population Growth: Challenges • U.S only major industrialized nation to continue significant population growth • Religious beliefs, individual rights, government tax programs, values • Preference for large families in developing countries • High infant mortality rates, children viewed as future caretakers of parents, women’s lack of control over reproductive choices, traditional desire for sons • Education is the biggest contributor to zero population growth

  8. Air Pollution: Sources • Sulfur dioxide • Particulates • Carbon monoxide • Ozone • Nitrogen dioxide • Lead • Hydrocarbons

  9. Air Pollution: Solutions • Develop national strategies to address air pollution • Support policies that encourage the use of renewable resources • Develop & utilize alternative methods of transportation are needed to reduce air pollution significantly

  10. Water Pollution

  11. Land Pollution

  12. Global Warming • Earth’s surface has risen 1°F in the past century, with an accelerated increase over the last two decades • Greenhouse gases – carbon dioxide, CFCs, ground-level ozone, nitrous oxide, and methane: form a gaseous layer that allows solar to heat to pass through to earth, but traps the heat as it tries to escape

  13. Global Warming: Considerations • How has the spreading of human habitat in the United States impacted plants and animals? • Do you think world leaders are concerned about the effects of global warming? • What can we, as individuals, do?

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