A small(ish) cetacean earplug can tell scientists a lot about what it's like to be a 100-ton aquatic mammal on a changing planet.
The project would, for the first time, enable researchers to study what exactly goes on in the Arctic ocean during wintertime.
A fossil study shows Gastornis roamed around Ellesmere Island, Canada, when it was far warmer than today.
One of the most important ocean current systems could be slowing down, according to a new study.
The U.S. government's Arctic "report card" for 2015 is bleak.
The Paris climate change conference on Monday must address US communities like Barrow, under assault from the weather.
Most of the Arctic isn't up for dispute. But the little that is will take years, even decades, to resolve.
Moscow is planning a larger military build up in the northernmost territories.
Obama also will propose to start planning for additional icebreakers required for safety in the changing Arctic—and to keep up with Russia.
"The Arctic is a unique treasure," Clinton tweeted. "Given what we know, it's not worth the risk of drilling."
The final permit came after the company repaired a ship essential to its exploration in the region this season.
Obama highlighted the atlas changes in a speech last week to illustrate the urgency of climate change.
Renewed Russian Arctic claims may lead to even cooler relations with the West.
The ship was headed to the Arctic for an oil-drilling mission before being forced to turn around.
The permits were approved despite officials earlier concluding that long-term drilling in the Arctic's Chukchi Sea would come with a 75 percent chance of a major spill.
The navy held two drills on consecutive days in the latest show of force by Putin.
The exercise was planned prior to Russia's annexation of Ukraine's Crimea region.
Dmitry Peskov has argued that Putin has limited control over the pro-Russian forces.
St Petersburg conference, attended by far-right and neo-Nazi parties, condemned Kiev government and homosexuality.
The move is part of Russia's large scale armed drills due to end tomorrow.
The move is part of ongoing military combat readiness drills.