A dirty riverbank and piles of trash in our cities are nothing compared to some of the most polluted places in the world. The ...

The United States has come a long way with environmental protections, but there are still concerns that need to be addressed. Air pollution has been hanging over our heads since the industrial ...

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CNN reported that the city was once so polluted that streetlights had to be turned on at noon. Power plants in the city can now switch back and forth between burning coal and natural gas ...

Opinions expressed by Forbes Contributors are their own. Alex Ledsom is a France-based contributor who covers travel. It's not often that we think of how polluted somewhere is when we plan our ...

(See photographs of the polluted orange skies that threatened the health of Californians.) For days, cities across the region had the worst air quality in the world—breaking their own records ...

More than 99% of Americans live under skies polluted by light. But dark skies at the Grand Canyon and more than 145 other ...