Air Pollution

Authorities in Mexico City declared an environmental emergency on Tuesday after pollution reached potentially hazardous levels.

A new report finds that inhaling air pollution doesn't just impact the heart and lungs: It can damage all parts of the body, and cause or worsen diseases.

Two women wear face masks on May 16th, 2019, in Mexico City, Mexico.

The National Parks Conservation Association's new report recommends mitigating pollution and transitioning to clean energy, with an emphasis on fair solutions.

A new book chronicles the rise of extreme air pollution—and the fixes that are helping to clean up the atmosphere

The study shows that the chemical reaction used in diesel filters can increase the presence of nitrogen dioxide—and worsen common allergic reactions.

A new study finds that air pollution caused by fossil fuel emissions is killing millions and disrupting the water cycle.

A green sign demarcates London's Ultra Low Emissions Zone as the charge comes into effect on April 8th, 2019, in London, England.

Prisons in Washington State may be blocking book donations, air pollution is shortening lives, and a four-legged whale skeleton provides evolutionary clues.

And as usual, it's the communities that are least responsible for it that suffer the most.

Air quality is harming children, sea otters get some good news, and a utility company provides a partial mea culpa for a major fire.

The EPA sidelines science, the Harvard University bias case goes to trial, and the West Coast might get its first offshore wind auction.

According to researchers, air pollution kills thousands in the city every year.

Underprivileged kids growing up in congested cities must overcome many handicaps; this study suggests one of them is the very air they breathe.

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Public-health advocates say the changes are dangerous to human health.

New research links air pollution to higher levels of crime and other unethical acts.

A new study uncovers an underappreciated source of air pollution in the Golden State: fertilized soil.

The suit claims that sources of air pollution located within Illinois, Michigan, Pennsylvania, Virginia, and West Virginia are contributing to smog in New York and Connecticut.

In New Delhi, a group of runners used an assortment of gear to run a race through an air quality crisis that blanketed the city in smog.

Each time the electricity powers off in Kathmandu, thousands of diesel generators rumble to life, spewing noxious particulate matter, or PM2.5.

As cities try to control their air pollution with driving bans, research finds citizens react by buying more cars, watching more television, and, sometimes, by driving less and contributing to lower pollution in their towns.

Serious crimes are more likely to occur in neighborhoods downwind of air pollution, according to a new study.

New research finds air pollution levels are higher in states with Republican governors.