A relatively small amount of groundwater trickling through Alaska's tundra is releasing huge quantities of carbon into the ocean, where it can contribute to climate change.
BOSTON (AP) — Residents across the country from the Northern Plains to the tip of Maine are bracing for dangerously low temperatures as tens of millions of residents along the East Coast contend with ...
A historic winter snowstorm has reached the Gulf Coast, smothering the region in Arctic air and dropping record-breaking amounts of snow on northern Florida.