A motorcyclist in Los Angeles prepares to turn while driving along a street engulfed in a thick haze combined by fog and smog in 1958.Bettmann / Getty For much of its history, the city of stars could ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Before environmental regulation, New York City struggled with severe pollution. The city's coastlines were often the sites of illegal dumping. Pollution regulations began after the Environmental ...

UK health study reveals the physical impact of air pollution on the body, as data shows 99% of the population is exposed to ...

Inver Grove Heights, Minnesota, Pine Bend sanitary landfill, the largest open landfill in Minnesota. (Photo by: Michael Siluk/UCG/Universal Images Group via Getty Images) June 5th marks World ...