The fate of polar bears has long been a flashpoint in the debate over human-caused climate change, used by scientists and environmentalists as well as deniers in their arguments
Researchers are exploring new ways to lower the metabolic rate of astronauts by 75%, similar to some large hibernating animals like bears.
Polar bears affected by melting Arctic ice are forced to spend more time on land to compete for food.
Russian officials have a couple of options to handle it, but no immediate solution for now.
You don't just feel the heat of global warming, you can see it in action all around.
Five Russian meteorologists at a remote weather station in the Arctic are currently being besieged by about 10 polar bears for nearly two weeks on Troynoy island.