US heat records are falling twice as often as cold records
Since 1999, the ratio has been two warm records set or broken for every cold one.
Scientists confirm existence of a different kind of orca off southern Chile
They are hard to find because they live far south and away from shore, unlike most killer whales.
Earth’s ozone layer is finally healing
Earth’s protective ozone layer is finally healing from damage caused by aerosol sprays and coolants, a new United Nations report said.
Alaska’s Redoubt among 18 U.S. volcanoes ranked as ‘very high threat’ in new assessment
The U.S. Geological Survey is updating its volcano threat assessments for the first time since 2005.
Fast and furious: How a storm named Michael quickly grew into a monster
Michael was barely a hurricane Tuesday morning, with winds of 90 mph. A little over a day later, it had transformed.
Beyond record hot, February was 'astronomical' and 'strange'
Earth got so hot last month that federal scientists struggled to find words, describing temperatures as "astronomical," ''staggering" and "strange." They warned that the climate may have moved into a new and hotter neighborhood.
This winter was the warmest ever recorded in the Lower 48
The winter that has just ended was the hottest in U.S. records for the Lower 48, thanks to the combination of El Nino and man-made global warming, federal meteorologists say.
Just what are Einstein's gravitational waves?
Astronomers on Thursday announced that their new billion-dollar U.S. observatory has detected a gravitational wave, a phenomenon Albert Einstein predicted a century ago in his theory of general relativity.
Sunshine follows record snowfall along U.S. East Coast as digging-out begins
Millions of Americans began digging out Sunday from a mammoth blizzard that set a new single-day snowfall record in Washington and New York City.
Dire warnings along the East Coast as snow piles up
A massive winter storm began pummeling the East Coast, as millions of people from the Carolinas to New York braced for a weekend of severe winds, power losses and coastal flooding.
Dire warnings along the East Coast as snow piles up
A massive winter storm began pummeling the East Coast, as millions of people from the Carolinas to New York braced for a weekend of severe winds, power losses and coastal flooding.
Snowstorm, already deadly, will blast tens of millions of Americans this weekend
One in seven Americans will get at least half a foot of snow outside their homes when this weekend's big storm has finished delivering blizzards, gale-force winds, whiteout conditions and flooding to much of the eastern United States.