DIY entrepreneurs have developed ingenious—and affordable—products to satisfy the public's insatiable demand for pure air.
The city is rolling out a series of regulations to cut emissions over the next five years.
NASA tries to answer the question.
A mysterious (and disgusting) change in the appearance of the harbor water has locals scratching their heads.
A stark picture of the geographic relationship between the city's top polluters and its most vulnerable places.
Another reason to worry if you live near a highway.
A new interactive map ranks California zip codes based on factors including air quality, pesticide use, groundwater, and traffic density.
Scientists monitoring Lake Erie have found tons of harmful plastic debris known as microplastics or "nurdles."
Photographer David Maisel has a knack for capturing the beauty and the horror of contaminated mines and toxic lakes.
A new report by the EPA found that the majority of rivers and streams can't support healthy aquatic life.
European researchers believe 14 percent of chronic childhood asthma can be blamed on living near busy roads.
That brings the total to about 6,000 dead hogs since Monday, but authorities claim the water is just fine.
Today's discovery of 3,000 dead pigs in Shanghai is shocking- but it isn't the first time this has happened in China.
A visual reminder of where most pollution in our cities comes from.
A look at the health consequences of coal's rising popularity.
Gina McCarthy has a strong record on regulating pollutants. But she also gets smart growth.
We hate to disappoint, but banning BBQ won't do much.
What could be more romantic than a trip to the innards of New York’s digestive system?
Climate Desk lays out the contents of China's air pollution.