Great Lakes become nearly covered with ice

From the bridge of the Coast Guard cutter Mackinaw, northern Lake Huron looks like a vast, snow-covered field dotted with ice slabs as big as boulders—a battleground for the icebreaker's 58-member crew during one of the ...

Q&A: Europe's freezing Easter and global warming

(AP)—Is it Easter or Christmas? Many Europeans would be forgiven for being confused by winter's icy grip on lands that should be thawing in springtime temperatures by now.

Heavy snow hits parts of southern California

Heavy snow fell in southern California on Friday, as the first blizzard in a generation pounded the hills around Los Angeles, with heavy rains threatening flooding in other places.

Trees' surprising role in the boreal water cycle quantified

Approximately 25 to 50 percent of a living tree is made up of water, depending on the species and time of year. The water stored in trees has previously been considered just a minor part of the water cycle, but a new study ...

Researchers switch from helium to hydrogen weather balloons

Hundreds of miles north of the Arctic Circle, Sandia National Laboratories researchers ensure the collection of important weather and climate data. By switching the gas used in their weather balloons, they have reduced their ...

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