Glacier melt in Antarctica will likely cause sea levels to rise more quickly than scientists had thought.

"People who study alpine glaciers have recognized the importance of snowlines for years, but no one had explicitly studied them in Greenland before."

Current annual losses amount to 335 billion tons, or about three times the ice volume stored in the entirety of the European Alps.

Advancing oceans are already displacing some small indigenous communities. New research starts to consider the effects on public health.

High-tide flooding in Annapolis, Maryland shows how rising sea levels already hurt coastal economies. And it's going to get worse.

Simulations of melting ice sheets suggest that the fastest increase in the rise of sea levels is likely to occur between 2065 and 2075.

"If Greenland is sensitive to the warming, we're going to see a lot of ice loss and therefore we're going to see a lot of sea level rise."

After more than a century of debate about whether California's Santa Catalina Island is rising or sinking, researchers may have the answer.