Independent: Rapidly disappearing Arctic sea ice is about to set a new record after an absurdly warm winter at the top of the world. For the second year running, it will have grown to cover less of the Arctic Ocean than ever before.
The revelation comes as scientists are increasingly worried that the heating of the region could escalate out of control, as growing numbers of feedback mechanisms which reinforce and accelerate the process are being discovered.
Most attention on the melting sea ice...