The Arctic is the largest expanse of frozen water on the planet. Two teams of researchers are racing to find out how global warming is rocking the Arctic world - before there's nothing left but water.

The Arctic is the largest expanse of frozen water on the planet. All creatures that make their home there are masters of survival, superbly adapted to the Arctic ice. But climate change has begun to eat away at the ice on which these creatures depend. Two teams of researchers are racing to find out how global warming is rocking the Arctic world - before there's nothing left but water.