Zombie Fire: It is a fire from a previous growing season that can smoulder under the ground which is made up of carbon-rich peat. When the weather warms, the fire can reignite.
These are also known as holdover fires.
Recently, the fires in the Arctic are spreading to areas which were formerly fire-resistant.
Fires in the Arctic are spreading to areas which were formerly fire-resistant. The tundra — north of the Arctic Circle — is drying up and vegetation there like moss, grass, dwarfs shrubs, etc is starting to catch fire.
The fires and record temperatures have the potential of turning the carbon sink into a carbon source and increasing global warming.