Climate change could revive medieval megadroughts in US Southwest

About a dozen megadroughts struck the American Southwest during the 9th through the 15th centuries, but then they mysteriously ceased around the year 1600. What caused this clustering of megadroughts—that is, severe droughts ...

US FAA: Boeing must address new issue on 737 MAX

US regulators said Wednesday Boeing must address a new "potential risk" in the Boeing 737 MAX, further clouding the timeframe for resuming service on the planes after two deadly crashes.

Pup fostering gives genetic boost to wild Mexican wolves

It's a carefully planned mission that involves coordination across state lines—from Mexican gray wolf dens hidden deep in the woods of New Mexico and Arizona to breeding facilities at zoos and special conservation centers ...

Survey: More Mexican gray wolves roaming southwestern US

More Mexican gray wolves are roaming the American Southwest now than at any time since federal biologists began reintroducing the predators more than two decades ago, the U.S. Fish and Wildlife Service announced Monday.

Drought on tap to intensify over US Southwest

Rivers are drying up, popular mountain recreation spots are closing and water restrictions are in full swing as a persistent drought intensifies its grip on pockets of the American Southwest.

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