See images from throughout Washington DC from Friday morning as Canadian wildfire smoke has draped the District with smoke ...

The city and suburbs were enveloped in smoke Thursday as air pollution from the Canadian wildfires wafted through the city ...

The global concentrations of one of the main air pollutants known to affect human health has been graphically illustrated for the first time by a team of scientists. The Air Quality Stripes which were ...

Add Yahoo as a preferred source to see more of our stories on Google. Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly ...

Posts from this topic will be added to your daily email digest and your homepage feed. These stripes show how air pollution has changed over 170 years from city to city. These stripes show how air ...

Researchers and artists have joined forces to "paint with light"—making invisible air pollution visible and demonstrating the health risks posed to people living and working in Ethiopia, India, and ...

The global concentrations of one of the main air pollutants known to affect human health have been graphically illustrated for the first time by a team of scientists. The global concentrations of one ...