Ecoclimax

Permafrost is a ground that permanently persists below 0 °C (32 °F) for 2 or more ages. Permafrost generally doesn't have to be the 1st layer that is on the soil. It can be from a centimeter to several kilometers below under the planet's surface.   Approximately 15 percent of the land of the Northern Hemisphere or 11% of the planet's surface is held by permafrost, including the large territory of Alaska, Canada, Siberia, and Greenland. Permafrost holds about 1.5 trillion metric tons of organic carbon , double as much as the planet's atmosphere currently keeps.  The considerable warming of the active layer of permafrost releases organic carbon in the form of greenhouse gas emissions, contributing to climate change. The map below created by  canadiangeographic.ca  shows permafrost overlaid with subsoil carbon content.

If every continental and mountainous glacier were to vanish, sea levels would rise by around 70 meters (230 feet). It's an inevitability but on a geologic time frame, not a human one. Ultimately, the different orbital cycles that are tied for large-scale climate periods will bring us out of our modern ice age, and Antarctica and Greenland will have their forests return. Today we are in an ice age, and most of our development has taken place in the warm interglacial period we are currently undergoing. The fact that we still have polar ice is an indicator that we are still in an ice age despite the last 12 thousand or more mild temperatures. The current interglacial is a little longer than most of them have been in the previous 400 thousand years and would likely be coming to a close relative shortly. Still, human activities in the last one hundred or so years have altered the climate dynamic. Notwithstanding our actions, we are doubtful to approach the sea levels shown in thes...