At one point, the driving comes face-to-face with a bear looking through his windshield.
A draws on the expertise of 15 researchers from different disciplines to predict what a warming world will mean for the Earth's polar regions.
Churchill, Manitoba, in Canada has become famous as the place to spot polar bears - but it's also one of the rare places you can swim with Beluga whales.
"People are scared, they are afraid to leave their homes," a local official said.
The ice is floating away from the land it's been attached to for years.
The guard "was attacked by a polar bear and injured on his head," the cuise ship operator said.
A hotel in Norway's Arctic archipelago of Svalbard received an unwelcome visitor and the governor had to fly by in a helicopter before the animal left.
Inuka had been suffering from a range of age-related issues and zoo staff decided not to revive him from anesthesia.
"They're a seal-eating species. It's what they do."
The delegation is trapped inside an Arctic island base, surrounded by bears.
As the world warms, the ice-free season in polar bears' Arctic habitats grows longer and longer.
Scientists believe global warming has caused this change in polar bear food choices.