Numbers For Thawing Permafrost

The goal is to limit atmospheric carbon dioxide accumulation to a total of 1,100 billion tons. There’s already 800 billion tons in the atmosphere. Thawing permafrost adds 160 billion tons each year. The northern hemisphere permafrost holds 1,800 billion tons. And then there’s the methane …

“Thawing Permafrost Could Be The Greatest Climate Threat You Haven’t Heard Of” – Grist