Record-tying Oklahoma earthquake felt as far away as Arizona

A record-tying earthquake in the edge of Oklahoma's key energy-producing areas rattled the Midwest from Nebraska to North Texas on Saturday, and likely will bring fresh attention to the practice of disposing oil and gas field ...

Climate pact: After years of talk, focus shifts to action

Eight months after 195 nations concluded a hard-fought climate rescue pact, pressure is mounting to put its carbon-cutting promises into action as world leaders gather at G20 and UN meetings this month.

At Berlin tech fair, waterproof gadgets make a splash

From smartphones that can survive a dip in the sink to sweat-resistant earphones and floating speakers for your next pool party, waterproof gadgets are making a splash at this year's IFA electronics fair in Berlin.