Wildfires are defrosting the tundra
This short article was initially included on High Country News
Portions of carbon-rich frozen soil, or permafrost, support much of the Arctic tundra. This constantly frozen layer sequesters carbon from the environment, often saving it for 10s of countless years underneath the boggy ground.
The frozen soil is insulated by a cool damp blanket of plant litter, moss and peat. If that blanket is incinerated by a tundra wildfire, the permafrost ends up being susceptible to thawing. And when permafrost defrosts, it launches the ancient carbon, which microorganisms in the soil then transform into methane-- a powerful greenhouse gas whose release adds to environment modification and the extreme improving of Northern latitudes around the world.
Research study released last month in Environ...