Nearly half of US teens are online ‘constantly,’ Pew report finds

Engage Men's Health, a nonprofit organization in South Africa, offers testing and medications to pre

A company started by two scientists has developed a hard hat that will do a better job protecting wo

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This was the year that environmental groups won a seven-year battle against the Keystone XL pipeline

A federal court on Wednesday affirmed a federal judge’s 2021 ruling imposing a $14.25 million penalt

California Gov. Jerry Brown declared a state of emergency Wednesday related to a massive, ongoing me

What began as a friendly bet between Hollywood actors Ryan Reynolds and Rob McElhenney turned into

The discussion of climate change in the Democrats’ first presidential debates was a little like the

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Smoke from the wildfires raging across Canada has created a thick haze across New York City's iconic

Ugandan health officials declared an Ebola outbreak in several regions in late September. Now, trave

"Beginning today, masks are encouraged but optional" on subways, buses and regional trains, New York

Global warming caused mainly by burning of fossil fuels made the hot, dry and windy conditions that

Two people were shot, one fatally, at a Maryland cemetery on Tuesday during the funeral of a 10-year

A sprawling, aggressive effort to measure the climate footprint of natural gas production has yielde

Texas Fracking Zone Emits 90% More Methane Than EPA Estimated