For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...

For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ...

President Donald Trump's massive tax and spending bill earmarks more than $8.6 billion to increase the U.S. Coast Guard ...

In the atmospheric layer above it, about 10 to 30 miles up, is the stratospheric polar vortex, where every winter a sunlight-starved Arctic spins up a mass of cold air that, ultimately, dissipates ...

Rapid changes from wet to dry weather can create severe natural disasters. And these precipitation whiplash events are ...

A new study challenges the idea that climate change is behind the erratic wintertime behavior of the polar jet stream, the ...

The United States must build a fleet of nuclear-powered icebreakers to counter Russia and China’s advantage in the Arctic.

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Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years and that may explain why long-range computer forecasts ...

The Polar Vortex's collapse will cause a major Arctic blast from central Canada into the Northeast United States, even if a progressive and dynamic weather pattern will persist across North ...