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.
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 which
has helped to keep the climate stable for thousands of years.