The head of the Federal Aviation Administration, who has led a tougher enforcement policy against Bo

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New research shows a recent three-year surge in methane levels in northeastern Pennsylvania, a hub o

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WASHINGTON (AP) — Wholesale costs in the United States picked up sharply last month, signaling that

The switch to energy-efficient lighting will proceed rapidly this decade, no matter the results of a

The World Health Organization convened an emergency meeting earlier this week, just a day after Equa

This story was co-published with NBC News. The U.S. military’s only heavy icebreaker suffered more e

It wasn't a surprise when President Trump fired National Labor Relations Board General Counsel Jenni

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Phoenix, Arizona — The population of Arizona's Maricopa County — which includes the Phoenix metropol

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Veteran news anchor Jorge Ramos has determined when he will be signing off from "Noticiero Univision

After considering and rejecting nearly all public suggestions for penalizing Enbridge over the large

As the wait continues for the ice to melt in Alaska’s Cook Inlet so a months-long underwater natural