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Winter Unlikely to See Repeat of Frigid Polar Vortex

The bouts of polar vortex incursions that happened last winter are unlikely this year, NOAA says.

Calif. Heads for Warmest Year As Drought Hangs On

Despite a wet September out West, drought is still a major concern as heat continues to bake the region.

2014 Extreme Weather: Looking for Climate Ties

Some of the extreme weather events from 2014 in which climate change could have played a role.

Drought Dries Up California Hydropower

Normally, 20 percent of California’s power comes from hydroelectric sources. But not anymore.

Scientists Eye ‘Real-Time’ Extreme Event Attribution

Scientists hope to determine almost in real-time whether global warming has a hand in extreme weather.

Drought Drains Already Diminished Aral Sea

A lobe of the ailing Aral Sea, once the fourth largest lake in the world, has dried up for the first time.

Hints of Climate Change in California’s Drought

Monday's studies hinted at climate change's role in California's drought, but stopped short of blaming it.

A Timeline of 2013 Extreme Weather and Global Warming

Take an interactive look at extreme weather events in 2013 and the role global warming did (or didn't) play.

Climate Fueled Some of 2013’s Most Extreme Events

Heat waves can clearly be linked to climate change, a new report finds, while rain events are murkier.

Science Shows How Climate Change is Baking Australia

5 reports reach similar conclusions regarding climate change and year of brutal heat waves in Australia.

Drought Takes Hold as Amazon’s ‘Flying Rivers’ Dry Up

Scientists say the loss of vapor clouds by rainforest trees is the result of deforestation & climate change.

Picture This: Summer Snow and Gnarly Lightning

In a weird week for weather, snow fell in some spots, while rains drenched normally dry areas.

Drought Divide: Tropical Rains to Help Plains, Not SoCal

Moisture from tropical storms will bring drought-easing rains to the plains, but only flash floods to SoCal.

Mountain Forest Changes Threaten Calif. Water Supplies

Landscape changes in the warming Sierra Nevada may have major impacts on California’s economy.

Battle Wages for California’s Groundwater Rights

California’s drought stresses the need to improve how the state & the rest of us divvy up a resource in demand.

Climate Change Ups Odds of a Southwest Megadrought

A new study shows that climate change is increasing the odds of long-term drought in the Southwest.

Crowdsourced Photos Provide Drought Snapshots

Anyone can contribute to a growing database of photos that show the state of drought across the U.S.

The Jargonaut: What’s a Rossby Wave?

An explanation of what a Rossby wave is and how it could be messing with U.S. weather patterns.

Epic Drought in West is Literally Moving Mountains

Drought in the West is causing the land to rise as water loss lifts a massive weight from the earth, a study shows.

Ongoing Coverage of Historic Drought in U.S.

A roundup of coverage on the most extensive and intense drought to hit the U.S. since at least 1956.

Gallery

Winter Precipitation Trends While every region of the country has seen a rise in winter temperatures, precipitation trends paint a more varied picture.