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 ...

In the frozen reaches of the planet—glaciers, mountaintops, and icy groundwater—scientists have uncovered strange ...

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 ...

Ice loss in Antarctica and its impact on the planet – sea level rise, changes to ocean currents and disturbance of wildlife ...

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 ...

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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The Arctic is the northernmost region of the Earth, centered at the North Pole. It is a vast polar region at the top of the world. Unlike ...

Unless society stops pumping more greenhouse gases in the air, “we can expect multiple factors to worsen summer extremes,” a ...