Will Greenland Soon Have Volcanoes?
Greenland has a cold and thick continental crust, which is several billion years old. Even if the ice disappears, and the pressure on the crust disappears, the risk of volcanic activity in Greenland in minimal. But this phenomenon is well-known and has had great consequences further to the east.
Until 16,000 years ago, Iceland was covered by a 1-km-thick layer of ice, which melted over a period of 4,000 years. The pressure reduction from the lack of ice made the volcanoes on the island run wild, and the number of eruptions grew to 30-50 times of the normal amount. The last active volcanoes were found in Greenland 55 m years ago.
Melting ice caused Iceland's volcanoes to wake up. This will not happen in Greenland.