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Weather

A deep chill covered much of the eastern half of the United States this winter. Winds known as the polar vortex did not blow in as tight a formation as they have in the past. When they loosened, they let Arctic air spill south, seen by the blue in this picture. Atmospheric scientist Jennifer Francis says that this pattern can be blamed on Arctic warming.

Why We Can Blame A Warm Arctic For This Winter’s Icy Chill

Arctic amplification is affecting the jet stream and letting weather systems persist longer, atmospheric scientist says

Park Place, Brooklyn after the 1888 blizzard.

Cool Finds

It Wasn’t Always the City’s Job to Remove Snow

Even if everybody isn’t happy with the quality of snow removal, they should be pleased it’s not their responsibility

New Research

South Australia Has a Higher Rate of Hypothermia Deaths Than Sweden

Weather can be dangerous when preparedness and support are lacking

New Research

Myth Debunked: Wind Farms Don’t Alter the Climate

A model indicates that doubling Europe’s number of wind turbines would have a negligible effect on temperature and precipitation

Super Bowl

The Science of the First Cold Weather Super Bowl

Science shows that the cold weather will make it harder for players to grip the ball, avoid slipping and hear each other over the roar of the crowd

Australia has a long record of devastating tropical cyclones, such as Yasi, which made landfall in Queensland in February 2011. But a new study finds such storms to be on the decline.

Australian Cyclone Activity Hits Record Low Levels

Climate change may explain the recent drop, scientists say

Beautiful, beautiful vaporized dirt.

New Research

Vaporized Dirt Might Be the Mysterious Cause of Ball Lightning

An analysis of one ball’s contents found silicon, iron and calcium—the main components of dirt

People bake in the heat at this year's Australian Open.

Trending Today

It’s So Hot They Had to Suspend the Australian Open Because Players Were Passing Out

Australia is getting hotter, creating dangerous conditions for everyone

The Chicago skyline during the polar vortex.

Trending Today

The Cold Snap Wasn’t Actually That Extreme, Global Warming Has Just Made Us Wimpy

The recent cold snap wouldn’t have been so unusual in the past

Courtesy of Flickr user

Is Today Really the Most Depressing Day of the Year?

Blue Monday: scientifically-grounded downer day or invention made up to sell more vacations and protein shakes?

This Cold Snap Is Making It Colder Than the Surface of Mars

There’s a pocket of cold air hanging over the eastern states, and it is very cold indeed

The northern subtropical jet stream flows in Cameron Beccario's Earth.

Watch How the Wind Moves Around the Earth—It’s Hypnotic

This mesmerizing tool helps visualize the winds all over the globe and is known simply as “Earth”

Inventing the Perfect Umbrella

Will a Japanese designer’s new take on umbrellas catch on where others have failed?

The Northern Hemisphere's mid-latitudes have experienced many heat waves in recent years, such as one that fueled Rocky Mountain wildfires in summer 2012. Warmer-than-normal temperatures appear red in this NASA image of North America on June 28, 2012.

Summer Heat Waves May Be Linked To Sea Ice Loss

As ice melts, the jet stream gets stuck in the north, causing warm weather to linger in the south—but the reason why this occurs remains unknown

A more Earthly Mordor.

Which U.S. City Most Resembles Mordor? A British Climate Scientist Found Out

Mordor is basically Los Angeles

Art Meets Science

The Art and Science of Growing Snowflakes in a Lab

Physicist Kenneth Libbrecht can make snowflakes with elegant spindles or blocky tabs by manipulating temperature and humidity

None

This is What a Huge, Rotating Supercell Looks Like

Photographer Mike Olbinski captured a massive and rare type of thunderstorm along the Texas panhandle

Absolute zero, the temperature at which all atomic and molecular motion stops, is much colder than anything ever experienced by people here on earth.

Scientists Are Trying to Create a Temperature Below Absolute Zero

If you can’t break the laws of physics, work around them

Ever wonder how much water is in a cloud?

How Much Water Is in a Cloud and More Questions From Our Readers

Imaginary numbers, Roy Lichtenstein and much much more

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