Air pollution from oil and gas production and use in the U.S. has an enormous health toll. A new study tallies the cost.

The Companhia Ambiental do Estado de São Paulo (CETESB) is the state’s environmental agency, responsible for environmental licensing, pollution control, and monitoring of air, water, and soil quality.

Climate change is driving more frequent and more intense wildfires around the world, including in the United States. These ...

Once among world’s most-polluted cities, Mexico City has made major strides in air quality through policy, technology and ...

While traveling through Manhattan, an NYU expert uncovers troubling air pollution levels in places you wouldn’t expect.

But the new study shows that number could be even higher—possibly as many as 1.5 million additional deaths globally every ...

Canada's record 2023 wildfire season fueled sharp increases in the country's air pollution and had similar effects in parts ...

The air quality in Swedish cities has improved continuously over the last twenty years, according to a research collaboration based at the University of Gothenburg. Several thousand deaths may have ...