"An enormous iceberg, more than 2,000 square miles in area — or nearly the size of Delaware — is poised to detach from one of the largest floating ice shelves in Antarctica and float off in the Weddell Sea, south of the tip of South America."

"Scientists have documented a recent, massive melt event on the surface of highly vulnerable West Antarctica that, they fear, could be a harbinger of future events as the planet continues to warm."

"A Delaware-sized iceberg is very close to splitting off from one of the largest ice shelves in Antarctica, scientists say, after a fast-growing crack stretched to within 8 miles (13 kilometers) of the open ocean this week."

"Due to congressional budget cuts, the 38-year continuous U.S. Arctic satellite monitoring program is about to end, leaving researchers blind to ongoing Arctic sea ice losses."

"Researchers in Antarctica have discovered rapidly growing banks of mosses on the ice continent’s northern peninsula, providing striking evidence of climate change in the coldest and most remote parts of the planet."

"We went to Antarctica to understand how changes to its vast ice sheet might affect the world. Flowing lines on these maps show how the ice is moving. ... The acceleration is making some scientists fear that Antarctica’s ice sheet may have entered the early stages of an unstoppable disintegration."

"U.S. Secretary of State Rex Tillerson signed an agreement recognizing the landmark Paris climate accord at a meeting of Arctic nations in Alaska on Thursday, but said President Donald Trump was not rushing to decide whether to leave or weaken U.S. commitments to the pact."

"The United States will participate in advancing climate change research in the Arctic, a State Department official said on Monday, ahead of a summit of Arctic nations later this week where Washington's commitment to tackling climate change will likely be questioned."

"A crack that could create an iceberg the size of Delaware - and destabilize one of the largest ice shelves in the Antarctic - has branched out and begun to widen more quickly, a scientist said on Wednesday."

"The northernmost village in Greenland sits just shy of 78 degrees north latitude — deep in the Arctic — yet during the summer, meltwater is everywhere. It flows in small rivulets and larger streams, past multicolored houses built against a sloping hill and down to the Inglefield Bredning, as it is called in Danish — a broad body of water at the confluence of several fjords."