Polar bears are getting horrific injuries and huge 'ice balls' on their paws because of climate change, researchers say

The rear paws of a sedated polar bear show how big blocks of ice and snow get stuck to them.

Polar bears are developing horrific wounds on their paws due to changing ice conditions in the Arctic, a new study reports.

In the most severe cases, researchers describe two bears with crippling, dinner plate-size balls of ice stuck to their feet. Beneath the ice balls, the bears' paw pads were covered in deep, bleeding cuts.