Warming of the global system could cause permafrost to melt, which would release methane into the atmosphere. This is an example of

Question

Quizplus · Accepted Answer

The melting of permafrost and release of methane into the atmosphere is a positive feedback process. As the global temperature increases, more permafrost melts, and more methane is released, which further increases global warming. This is a cyclical process that amplifies the initial warming.

Warming of the Global System Could Cause Permafrost to Melt