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El Niño Brings Floods, Risks — and Opportunities

El Niño ups the odds of flooding in some spots, but that information could provide opportunities.

6 Degrees: Security Risks, Tornadoes and Earthquakes

A new climate report from the Pentagon, tornado trends, earthquakes and more in this week's top climate news.

Picture This: Seasonal Rainbows & A Monster Hurricane

Hurricane Gonzalo was an imposing site in images, while the sun cast a shadow across a cold front.

Jack Frost Not Exactly Nipping at Your Nose

The frost-free season is growing longer across the U.S. overall. Check the trend in your city.

Tornado Days Decreasing, but Number Per Day Rising

Tornadoes are seeming to cluster together so that there are fewer days with tornadoes, but more tornadoes on the days that do have them.…

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.

What’s Behind Recent Flurry of Hurricane Activity?

A flurry of hurricane activity in the Atlantic basin is linked to a phenomenon called the MJO.

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.

Expanding Antarctic Sea Ice is Flooding ‘Warning Bell’

Expansion of Antarctic sea ice heralds ocean changes that could trap heat and accelerate ice sheet melting.

Warming Endangers a Crucial Yellowstone Tree

Climate change is a major driver in the precipitous decline of a key Yellowstone tree species.

Fish Fail to Adapt to Rising CO2 Levels: Study

Rising CO2 levels could spell disaster for certain fish species according to recent research.

Picture This: Monster Typhoon and Miami’s King Tides

A Blood Moon, King Tides and a monstrous looking typhoon in the Pacific made for amazing images.

Where Is El Nino? And Why Do We Care?

El Niño still hasn't emerged, but forecasters give it a two-thirds chance of forming by the end of the year.

2014 Extreme Weather: Looking for Climate Ties

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

Sea Level Rise Making Floods Routine for Coastal Cities

Floods during high tide have become common in many coastal cities, and they're about to become downright routine.

Drought Dries Up California Hydropower

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

How We Can Save Coral Reefs and Why We Should

As oceans grow warmer and more acidic, scientists are developing new strategies to rescue coral reefs.

Picture This: Fall Snow and Bizarre Clouds Over NYC

Snows fell on fall leaves in Colorado, while torrential rains fell and flooded parts of southern France.

Scientists Eye ‘Real-Time’ Extreme Event Attribution

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

Is The World’s Main Climate Goal Misguided?

Two scientists say the world needs new climate goals. The proposal is not being well received.

Gallery

Winter Olympics in a Warming World If global warming continues unabated, only 6 of the 19 previous host cities could host the Winter Games again by the 2080s.