the full data for latitudes 64-90°n reveal the arctic is warmer today than in 1940.
the full data for latitudes 64-90°n reveal the arctic is warmer today than in 1940.
arctic:19
due to the poleward migration of the planet's isotherms (about 56 km (35 mi) per decade during the past 30 years as a consequence of global warming), the arctic region (as defined by tree line and temperature) is currently shrinking.