A record loss of sea ice in the Arctic
this summer has convinced scientists that the northern hemisphere may
have crossed a critical threshold beyond which the climate may never
recover. Scientists fear that the Arctic has now entered an
irreversible phase of warming which will accelerate the loss of the
polar sea ice that has helped to keep the climate stable for thousands
of years.
this summer has convinced scientists that the northern hemisphere may
have crossed a critical threshold beyond which the climate may never
recover. Scientists fear that the Arctic has now entered an
irreversible phase of warming which will accelerate the loss of the
polar sea ice that has helped to keep the climate stable for thousands
of years.