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 ...

Scientists have found evidence that the Asian continent was free of permafrost all the way to its northerly coast with the ...

Ice loss in Antarctica and its impact on the planet – sea level rise, changes to ocean currents and disturbance of wildlife and food webs – has been in the news a lot lately. All of these threats were ...

In Alaska, we must also be vigilant to another brewing geopolitical hotspot, the melting Arctic. Arctic competition is exacerbated by climate change. When most Americans think about climate change, ...

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 ...