Air pollution remains one of the most serious environmental and public health challenges facing the world today. From the exhaust fumes on busy highways to industrial emissions, wildfire smoke, and ...

Researchers have received the first sets of images from Sentinel-4, and they are amazed. Sentinel-4 is not up and running yet, but its images from the testing phase paint an accurate picture of its ...

I grew up in rural Colorado, deep in the mountains, and I can still remember the first time I visited Denver in the early 2000s. The city sits on the plain, skyscrapers rising and buildings extending ...

A new interactive map and groundbreaking database allows people in the world’s largest metropolitan areas to track their air pollution exposure, along with their region’s biggest sources of ...

After mapping America's skies, scientists realized that they had been missing this crucial pollution contributor: woodburning ...

For years, when the EPA assessed the economic impact of new regulations, it weighed both the health costs for Americans and ...