Temperatures approaching the century mark amid the hottest weather yet this year will challenge records in many places that date back to the late 1800s and early 1900s.
After a severe weather outbreak hammered the southern Plains and Central states early this week, a new round of severe weather will erupt in the same areas by Thursday and Friday.
As AAA expects nearly 43 million Americans to travel this Memorial Day holiday weekend, up 3.6 percent from last year, stormy weather will create trouble for some areas. Meanwhile, summerlike heat will prevail in other areas of the country.
"If you live within 50 miles of the coast, you should be prepared to be hit by a Michael or a Florence or a Harvey."
Researchers have found a way to measure the carbon released into Arctic rivers by thawing permafrost.
Sea level rise is hitting coastal habitats along the south Atlantic Coast faster than scientists previously thought, threatening entire species of birds and whole ecosystems if action isn't taken soon.