The decision bought officials time to avert economic harm, but raised concern from health advocates about the continued impacts of ozone on Arizonans.

Pakistan’s air pollution crisis has reached a critical tipping point. Cities like Lahore, Karachi, and Peshawar frequently ...

Cities in California, Texas, and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

Arizona lawmakers have so far allowed the House bill to move forward, despite warnings that it's unconstitutional and a risk ...

The EPA estimates that between 2007 and 2018 the rule has cut 500,000 tons of sulfur dioxide and 300,000 tons of nitrous ...

Researchers studying pharmaceutical pollution tracked salmon that had been exposed to anti-anxiety medication. The fish appeared to lose their inhibitions.

The Texas Commission on Environmental Quality has issued an Ozone Action Day, also known as an Air Quality Alert, for the ...

A city may have to wait 20 years to cut pollution levels to legal limits because of issues with a single road. Stephenson ...

State and local officials have struggled for years to get a handle on ozone, a type of pollutant regulated by the federal government. Ozone levels long appeared to be declining in the ...

This excerpt comes from the forthcoming book “Poisoning the Well: How Forever Chemicals Contaminated America,” which details how a set of toxic compounds have devastated entire ...

Climate experts expressed shock and dismay at the move. “It would be a bit like unplugging the equipment that monitors the ...

A new executive order from President Donald Trump that’s part of his effort to invigorate energy production raises the ...