Climate Change in the Arctic - The Changing Arctic Environment: The Arctic Messenger - page 231

ence).” Furthermore, “the globally average combined land and ocean surface temperature
data as calculated by a linear trend, show a warming of 0.85°C over the period 1880-2012
when multiple independently produced datasets exist”. 2
However, the Arctic is warming much faster than almost anywhere else on the planet
- at about twice the global rate. It is a key point we will return to again and again in this
chapter. The difference between a temperature range that supports the survival of summer
ice (as the Kigoriak experienced in 1979) and one that does not (as seen today) is small.
(See Figure 10.2 .)