ABC.net: As the Arctic melts, a regime shift is taking place. The Arctic is changing faster than any environment on Earth. The old order is being swept away, leaving scientists to ask: What’s coming in its place?
Where there was once ice, there is now open ocean.
Milky swirls of plankton, hundreds of kilometres in length, now bloom where polar bears once roamed.
It is a spectacular sight looking down from space.