The Arctic
was also warm in the period 1925-1940, but the extent of warmth was not global
at that time.
Large
future changes in Arctic sea ice are very likely.
Changes in
sea ice donÕt
significantly affect sea level because this ice is
already floating. Changes in land ice (glaciers, ice caps, and ice sheets) do affect sea level.
Clear decreases in Arctic sea ice extent.
A
different world in the Arctic:
present and future
