7,000 methane gas bubbles under the Russian permafrost could explode anytime.

[Cattledog]

Scorching March brings Arctic temperatures up to 20°F warmer than normal.

This discovery is especially worrisome for three reasons. First, methane traps 86 times as much heat as CO2 over a 20-year period. Thawing permafrost creates both CO2 and methane (CH4), but most models of thawing permafrost assume only CO2 is created. If, as it appears, a lot of methane is being generated, then we’ll see even more extra warming than scientists have projected.

More at:

https://thinkprogress.org/methane-bubbles-arctic-769bf3f1b099