Pollution regulations began after the Environmental Protection Agency formed in 1970. The Trump administration has recently ...

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With no federal mandates to protect air and water, pollution levels were catastrophic, creating dangerous living conditions ...

(Getty Images) New York City topped the list for the world’s worst daily air pollution. Unhealthy air quality can lead to health problems, especially for those in sensitive groups including ...

Those images, which NASA compiled into a time lapse ... Mexico and the Caribbean as hotspots for air pollution, particularly during certain times of day. The pollution maps "show high levels ...

The pollution has forced authorities in Pakistan to close schools and public spaces as the acrid smog threatens the health of tens of millions of people. Images from the Pakistani cities of Lahore ...

States across the border issued air advisories about particulate pollution that are expected to last for several days.

Frank-Bienewald / Getty Images By artificially extending the length of the day, light pollution can cause changes in a a plant's flowering pattern (Credit: Frank-Bienewald / Getty Images ...