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.
Arctic
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.
Canada to quadruple sub fleet as NATO, Russia and China eye the Arctic
Canada plans to buy 12 new submarines as the U.S. and its allies and adversaries step up operations in the thawing Arctic.
Could the Arctic be ice-free within a decade?
Could the Arctic be ice-free within a decade? Here's what the latest science says – and how the loss of all that ice could lead to the next global conflict.
Could the Arctic be ice-free within a decade? What the latest science says
Researchers predict that the first ice-free day will take place sometime between the 2020s and 2030s.
POV: A day in the life of a polar bear
Equipped with a video camera collar, this polar bear in Manitoba, Canada, reveals what a day in its life looks like as the Arctic sea ice it heavily relies on continues to melt and impacts its feeding, swimming and other activities.
What temperatures are too cold for your pets? Experts weigh in.
"If you're bundled up, and you find that it's too cold and you can't handle it any longer, your dog probably can't either," one veterinarian said.
Deadly arctic blast affecting millions
The freezing temperatures that impacted the Iowa caucuses are being blamed for at least 12 deaths from Oregon to Tennessee. Texas is one of the places feeling the effects of the arctic blast with extreme wind chills blanketing the state Tuesday. Dominic Brown with CBS News Texas has a look at the forecast.
Winter storms bring possible record-breaking Arctic cold, snow
A continuing wave of Arctic storms threatened to break low-temperature records in the nation's heartland, spread cold and snow from coast to coast and cast a chill over everything ranging from football playoffs to presidential campaigns.
Navalny confirms he's in Arctic penal colony and says he's "fine"
The Russian opposition leader says he's "relieved" that he's "finally made it." His whereabouts were unknown for more than two weeks before his spokesperson said he'd been located.
Russian military presence in the Arctic north
As CBS News correspondent Holly Williams reports, Russia's interest in the Arctic region can be tied to its military readiness to reach the U.S. in the event of war.
Russia ramps up Arctic military presence as Ukraine war nears 2-year mark
Norway's Svalbard Archipelago, deep inside the Arctic Circle, has become a focal point of the tension between Russia and America's NATO allies.
More than 70 million face increased threat of sea level rise worldwide
New data finds the impact of climate change on coastal flooding could increase five-fold by the end of the century, leading to major property and infrastructure losses.
How melting glaciers fuel sea level rise
In Svalbard, Norway, scientists are learning how Arctic glaciers melting at an unprecedented rate will affect rising sea levels. CBS News national environmental correspondent David Schechter visited a cluster of islands close to the North Pole to learn more.
Deaths mount from flash floods scientists had warned about for years
Scientists have warned for decades that India's Himalayan glacial lakes are disasters waiting to happen. Climate change means they aren't waiting any more.
Biden administration scraps several Alaska Arctic Refuge oil and gas leases
The move, which angered Republicans and even some Democrats, follows the administration's approval of the massive Willow oil project in Alaska's National Petroleum Reserve.
live updates
Watch Live: Charlie Kirk memorial service honors conservative activist
President Trump, Vice President JD Vance and Erika Kirk are speaking at Sunday's memorial service for Charlie Kirk, founder of Turning Point USA, at State Farm Stadium in Arizona.
U.K, Australia and Canada recognize Palestinian state despite U.S. opposition
More than 140 countries have already taken that step and more are expected to do so at the U.N. General Assembly this week, including France.
Macron calls Ambassador Kushner's criticism of France "unacceptable" for diplomat
In an interview with CBS News' "Face the Nation with Margaret Brennan," the French president pushed back on criticism for recognizing a Palestinian state.
Former Trump economic official says "we've seen the job market degrade"
Gary Cohn, IBM vice chair and director of the National Economic Council in the first Trump term, said for companies in a "very difficult environment," cutting down on the cost of labor is "the one lever they can pull."
Exclusive
ICE threatens lawsuits if Democratic states don't hold migrants
The Department of Homeland Security is escalating its clash with so-called sanctuary states, warning multiple states they could face legal action, CBS News has learned.
Pentagon to impose new limits on media, documents show
The Pentagon's new guidelines were sent to reporters on Friday.
Newsom signs bill barring on-duty federal officers from wearing masks in California
California Gov. Gavin Newsom also signed bills enhancing protections for children at schools, hospitals.
1 dead, 2 injured in shooting at New Hampshire country club; suspect arrested
One person is dead and several people were wounded during a shooting Saturday night at Sky Meadow Country Club in Nashua, New Hampshire.
Rabbi Angela Buchdahl on Rosh Hashanah, and a return to "our better selves"
As the Jewish calendar marks Rosh Hashanah, Rabbi Angela Buchdahl offers a message to us all about commemorating the New Year.