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 ...

Boeing didn't tell airlines that safety alert wasn't on

Boeing said Sunday that it discovered after airlines had been flying its 737 Max plane for several months that a safety alert in the cockpit was not working as intended, yet it didn't disclose that fact to airlines or federal ...

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