Inside Trump's Greenland deal with Denmark
President Trump signed a new deal with Denmark and Greenland, which would allow the U.S. to open two new military bases in the Arctic. CBS News' Holly Williams has more on this.
Arctic
Arctic sea ice hits lowest winter level as heat records are shattered worldwide
Arctic sea ice levels are crucial to Earth's climate because, without the ice reflecting sunlight, more heat energy goes into the oceans.
"Black carbon" in Arctic an increasing concern amid other issues in region
"Black carbon," or soot, that spews from ships and makes the Artic Ocean ice melt even faster is an increasing concern in a region beset with many other issues.
As Trump disparages NATO allies, they chase Russian subs in the Arctic
As Trump questions the loyalty of a NATO ally, CBS News joins one of its warships taking part in a drill far from home, aimed at defending Europe and the U.S.
NATO's mission to boost presence in Arctic
Planning is underway for a new mission to boost NATO's presence in the Arctic. It follows President Trump's demand to take over Greenland, claiming NATO allies don't do enough to guard against threats from Russia and China. Holly Williams reports.
Scientists "quite surprised" to find one polar bear population thriving
After decades monitoring polar bears in Norway's far north, researchers say the animals have proven incredibly adaptable, but there are no guarantees for the future.
Canadian amb.: U.S.-Canada deal "not doomed"
Kirsten Hillman, Canada's ambassador in D.C., told CBS News the U.S. and Canada are "not in the middle of a divorce, but we are in the middle of a change." She also said Canada is "deeply committed to Arctic defense."
Trump aims for 2-week timeline on Greenland deal
On his way back from the World Economic Forum, President Trump set a two-week timeline for a deal on Greenland. Kenneth Rosen, award-winning war correspondent and author of "Polar War," joins with analysis.
Canadian ambassador to U.S. on Arctic defense
President Trump has revoked his invitation for Canada to join his newly founded Board of Peace. This comes alongside a war of words with his Canadian counterpart, Mark Carney. CBS News chief foreign affairs correspondent and "Face the Nation" moderator Margaret Brennan spoke with Canadian Ambassador to the U.S. Kirsten Hillman about the issue.
Lake effect snow sweeps Eastern U.S.
The Eastern U.S. was dealing with lake effect snow over the weekend as Arctic air is expected to bring frigid temperatures to much of the country this week. Rob Marciano reports.
Maps show why Greenland is so important as the Arctic warms
As the Earth warms, new shipping routes from one side of the globe to the other are opening around Greenland, making the vast island a strategic priority for superpowers.
White House discussing options for Greenland
The White House is discussing options for acquiring Greenland, including a U.S. military takeover by force. CBS News senior White House and political correspondent Ed O'Keefe has the latest.
Arctic temperatures rising twice as fast as elsewhere, NOAA report says
Temperatures in the Arctic continue to follow a long-term warming trend, according to the National Oceanic and Atmospheric Administration.
China has "unprecedented number" of ships in U.S. Arctic waters, DHS says
The Department of Homeland Security says this year has seen an "unprecedented" presence of Chinese military and research vessels in the U.S. Arctic region.
Reindeer populations could drop by up to 80% by 2100, researchers say
Reindeer populations across the Arctic will likely decline due to future climate change with the North American population facing the highest risk, researchers predict.
China research ships ramping up activity in U.S. Arctic, Coast Guard says
The U.S. Coast Guard reports an increase in activity by Chinese research vessels in and around the U.S. Arctic.
Record-breaking arctic chill moving across U.S.
A massive arctic chill is moving over much of the country, bringing bone-chilling cold and snow. More than 67 million Americans are under winter weather alerts. David Begnaud reports and CBS News climate and weather contributor Jeff Berardelli shows the forecast.
Manchin warns of Russian aggression in the Arctic
Sen. Joe Manchin, D-West Virginia, joins moderator Margaret Brennan to discuss his recent trip to the Arctic amid U.S. intelligence reports that Russia is conducting secret nuclear weapon tests there.
Why ice loss in the Arctic is threatening polar bear populations
After a summer of fasting on land, the bears need to get back to their frozen home to hunt seals and bulk up. But their migration ritual is changing.
U.S., Canadian jets scrambled as Russian warplanes spotted in the Arctic
Several hours later, NORAD said it also scrambled two F-16 fighter jets from Alaska to Greenland.
Arctic tundra becoming a source of carbon dioxide emissions, NOAA warns
The Arctic tundra has historically helped reduce global emissions. But rising temperatures and wildfires in the region are changing that, scientists say.
NASA shows off image of U.S. military's abandoned "city under the ice"
Scientists now have a clearer picture of Camp Century, an abandoned U.S. military base long hidden under the ice in Greenland, thanks to a NASA research team's good luck.
Fossils in Greenland ice sheet reveal increased risk of sea level rise
New research about Greenland's ice sheet could provide a warning of what's to come as the planet continues to warm.
Russia and China push back against U.S. warnings over Arctic activity
The U.S. says climate change is helping Russia and China boost activity in the Arctic. Moscow and Beijing insist there's no cause for alarm.
Russia says its fighter jets intercepted U.S. bombers in the Arctic
"The crews of the Russian fighters identified the aerial target as a pair of U.S. Air Force B-52H strategic bombers," Moscow's defense ministry wrote.
Jane Doe's account of what happened at Cornell fraternity house
More details emerge about FlyDubai co-pilot who tried to crash plane
Judge blocks Trump's firing of top federal prosecutor in Seattle
Christa Pike's attorneys: Botched execution was "torturous" and "predictable"
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