Arctic sea ice hits record low: live updates and reaction | Environment | guardian.co.uk
Meier went on to explain on of the mechanisms for accelerating the summer ice loss. The older sea ice, which is 3m to 4m thick, is becoming increasingly vulnerable.
Larger expanses of that older sea ice, which is more resistant to melting, is breaking up into more isolated blocks surrounding by thinner summer ice.
“It used to be that it all hung together like a big herd of animals almost protected. Now there are pieces that are becoming more isolated, almost separated from the herd, and they can be more easily melted,” he told Suzanne Goldenberg.