Lobster's Pepsi 'Tattoo' Highlights Major Ocean Problem loading...
Lobster's Pepsi 'Tattoo' Highlights Major Ocean Problem
The image is just one example of how ocean trash impacts marine wildlife.
These Energy-Saving Bulbs Are Making One Pollutant Much Worse loading...
These Energy-Saving Bulbs Are Making One Pollutant Much Worse
Though energy-efficient, bright rays from LEDs are contributing to a host of human and animal problems.
Birds Once Turned Black From Pollution—What That Teaches Us Today loading...
Birds Once Turned Black From Pollution—What That Teaches Us Today
Birds that flew over the U.S. Rust Belt during the 20th century have become a record for changing air quality.
This Heartbreaking Photo Reveals A Troubling Reality loading...
This Heartbreaking Photo Reveals A Troubling Reality
Photographer Justin Hofman's image of a seahorse swimming with a discarded cotton swab illustrates the issues of pollution in our oceans.
Does Air Pollution Reduce Cycling’s Health Benefits? loading...
Does Air Pollution Reduce Cycling’s Health Benefits?
Columbia University scientists use innovative tools to investigate how vehicle exhaust impacts cyclists.
Eating A Burger Or Driving a Car: Which Harms The Planet More? loading...
Eating A Burger Or Driving a Car: Which Harms The Planet More?
Up to 93 million cows and counting—find out how our reliance on industrial feedlots is affecting the environment.
A Whopping 91% of Plastic Isn't Recycled loading...
A Whopping 91% of Plastic Isn't Recycled
Billions of kilograms of plastic have been made over the past decades, and much of it is becoming trash and litter, finds the first analysis of the issue.
Woolies Chucks Out Plastic Bags loading...
Woolies Chucks Out Plastic Bags
Well done Woolworths for abolishing 3.2 billion plastic bags yearly.
Transgender fish found in British Rivers loading...
Transgender fish found in British Rivers
From flushing harsh chemicals down the toilet.
Three Quirky Projects Make Art Out Of China's Polluted Air loading...
Three Quirky Projects Make Art Out Of China's Polluted Air
Filthy air has inspired Chinese citizens to speak out—and in some cases, to create art.
About Air Pollution

Smog hanging over cities is the most familiar and obvious form of air pollution. But there are different kinds of pollution—some visible, some invisible—that contribute to global warming. Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution.

Carbon dioxide, a greenhouse gas, is the main pollutant that is warming Earth. Though living things emit carbon dioxide when they breathe, carbon dioxide is widely considered to be a pollutant when associated with cars, planes, power plants, and other human activities that involve the burning of fossil fuels such as gasoline and natural gas. In the past 150 years, such activities have pumped enough carbon dioxide into the atmosphere to raise its levels higher than they have been for hundreds of thousands of years.

 

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