"ABOARD A NASA RESEARCH PLANE OVER GREENLAND — The fields of rippling ice 500 feet below the NASA plane give way to the blue-green of water dotted with irregular chunks of bleached-white ice, some the size of battleships, some as tall as 15-story buildings."

"Russia is planning to dispatch the vessel, its first floating nuclear power station, on a 4,000-mile journey along the Northern Sea Route, in a milestone for the country’s growing use of nuclear power in its plans for Arctic expansion."

"More than 100 intense wildfires have ravaged the Arctic since June, with scientists describing the blazes as 'unprecedented.'"

"The vast expanse of sea ice around Antarctica has suffered a “precipitous” fall since 2014, satellite data shows, and fell at a faster rate than seen in the Arctic."

"The Arctic spring thaw has begun with a bang, with extensive melting of the Greenland ice sheet and sea ice loss that is already several weeks ahead of normal, scientists said."

"The story of the seabirds’ deaths likely starts at the bottom of the food chain, where warming water and climate change are changing the menu."

"Russia launched a nuclear-powered icebreaker on Saturday, part of an ambitious program to renew and expand its fleet of the vessels in order to improve its ability to tap the Arctic’s commercial potential."

"Ice losses are rapidly spreading deep into the interior of the Antarctic, new analysis of satellite data shows."

"The United States has refused to sign an agreement on challenges in the Arctic due to discrepancies over climate change wording, diplomats said on Tuesday, jeopardising cooperation in the polar region at the sharp edge of global warming."

"The Antarctic’s second-largest colony of emperor penguins collapsed in 2016, with more than 10,000 chicks lost, and the population has not recovered, according to a new study."