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Extreme Halloween: Ghoulish Weather Records

Happy Halloween! Here's a look at Halloween climate extremes for cities across the country.

An Ill Wind Blows in Antarctica, Threatens Global Flooding

The Southern Ocean's notoriously strong gales are growing stronger, and that's foreboding news for coastlines everywhere.

Two Years On: Sandy Inspires Storm of Climate Research

Sandy will "be one of the most studied storms" to hit the U.S. Here's what researchers are already learning.

Australia Blasted by Record Heat — Again

As the mercury keeps rising in Australia, weather records keep falling. Climate change is playing a role.

Drying Amazon Could Be Major Carbon Concern

Since 2000, the Amazon rainforest has been drying, a trend that could have big carbon implications.

Cold Winters in Europe, Asia Linked to Sea Ice Decline

Arctic sea ice decline has doubled the chances of an extreme cold winter over Europe and Asia.

6 Degrees: Rising Seas, Shrinking Goats & Zombie Ice

This year breaks heat records, the drought hangs on, goats get smaller and more in this week’s climate news.

Picture This: Wavy Clouds & A Gnarly Nor’easter

A rare type of cloud and the sediment stirred up by Hurricane Gonzalo are among this week's highlights.

One of Sao Paulo’s Biggest Reservoirs Is Nearly Dry

Drought is taking its toll on the water system that quenches the thirst of Brazil’s largest city, Sao Paulo.

What Will Winter Hold for Drought-Plagued California?

El Nino probably won't bring California drought-busting winter rains, but the news may not be all bad.

San Francisco Rising to Threat of Swelling Seas

A new checklist will help San Francisco protect $25 billion worth of infrastructure from rising seas.

Polar Vortex Spiked U.S. CO2 Emissions in 2013

The polar vortex spurred a spike in CO2 emissions in 2013 as people cranked up their heat last winter.

Zombie Glacier Surprises Scientists

Discovery of a semi-lifeless glacier in southeastern Iceland creates a new zombie class of frozen rivers of water.

El Niño Brings Floods, Risks — and Opportunities

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

Hot News: 2014 On Track to Become Warmest Year

The "odds are good" that 2014 will be the warmest year in the books, fueled by record ocean warmth.

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.

Gallery

Global Warming: It’s Not the Sun Climate change can be natural, but what’s happening now can’t be explained by natural forces.

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