"Grazing may slow Arctic climate change, a new study finds -- but we’re gonna need more reindeer."

"The livelihood of the Nenets people who live along the northern stretches of the Yenisei, Russia’s longest river, depends on two pursuits: fishing and reindeer herding. But locals have said both of those activities are under threat from an oil terminal due to be built on the Tanalau cape, near where the river empties into the Arctic Ocean."

"It's happening again: The temperature at the North Pole is projected to spike to around the melting point, or 32 degrees Fahrenheit, on Wednesday into Thursday, despite the complete lack of sunshine that far north in December."

"President Obama announced on Tuesday what he called a permanent ban on offshore oil and gas drilling along wide areas of the Arctic and the Atlantic Seaboard as he tried to nail down an environmental legacy that cannot quickly be reversed by Donald J. Trump."

"KAKTOVIK, Alaska — Come fall, polar bears are everywhere around this Arctic village, dozing on sand spits, roughhousing in the shallows, padding down the beach with cubs in tow and attracting hundreds of tourists who travel long distances to see them."

"Both the Arctic and Antarctic experienced record lows in sea ice extent in November, with scientists astonished to see Arctic ice actually retreating at a time when the region enters the cold darkness of winter."

"More than a year ago, five Arctic nations signed a declaration pledging to keep their fishing fleets out of the international waters in the Arctic Ocean, an area increasingly ripe for exploitation as summer sea ice diminishes — and perhaps increasingly vulnerable with so little known about its ecology."

"The Obama administration is set to block the sale of new oil and gas drilling rights in U.S. Arctic waters under a five-year blueprint, handing a victory to environmentalists who said the activity threatened whales, walruses and other wildlife in the region."

"Antarctica's ice has been melting, most likely because of a warming climate. Now, newly published research shows the rate of melting appears to be accelerating."

"Science ministers from 25 nations joined Alaska Natives from the Alaska Arctic for a first-of-its-kind White House meeting Wednesday to work on international cooperation for Arctic research."