Earth Day: Stats & Facts
Updated February 21, 2017 | Factmonster Staff 
Facts & Stats about Pollution and Global Warming
Find explanations of the greenhouse effect, the ozone layer, and substances that pollute the air; statistics about polluted areas in the U.S. and the world, information about environmental disasters, and more.
- Air Pollutants
- Global Warming
- Climate Change Imperils Future of Several Nations
- Greenhouse Effect
- All About Ozone
- Most Polluted Places in the United States
- Most Polluted Places in the World
- Top Corporate Polluters
- America's Most Endangered Rivers
- Marine Debris
- A Warming Ocean
- Top Carbon Dioxide Emitters in the World
- Most and Least Polluting Vehicles
- World's Worst Pollution Problems
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