ice sheet
Dwindling glaciers paint a grim picture of what's to come if the United States -- and the rest of the world -- don't adequately respond to climate change.
“This is not science fiction. It is the reality of climate change," one scientist warned.
The planet’s largest ice sheet is losing more than 240 billion tons of ice every year -- a threefold increase from what it was less than a decade ago.
Two new studies reveal just how dynamic — and potentially vulnerable to climate change — it actually is.
