Are earthquakes to blame for Arctic warming?

Moscow, Dec 27 : The Arctic’s rapid warming could have been triggered by a series of great earthquakes, suggests new research.
In the Arctic, one of the factors driving climate warming is the release of methane from permafrost and metastable gas hydrates in the shelf zone.
The study published in the journal Geosciences attempted to offer an explanation for abrupt temperature changes observed in the region.
Global warming is widely believed to be caused by human activity, which increases the concentration of greenhouse gases in the atmosphere.
However, this view does not explain why temperatures sometimes rise fairly abruptly.
Since researchers began to monitor temperatures in the Arctic, the region has seen two periods of abrupt warming: first in the 1920s and ’30s, and then beginning in 1980 and continuing to this day.