Researchers from the University of Colorado Boulder have revived microbes frozen for 40,000 years in Alaskan permafrost. The study reveals that while initial activity is slow, extended warm periods can trigger a surge in microbial growth, leading to the production of biofilms and the release of stored carbon. With approximately 1,500 gigatons of organic carbon stored in permafrost, this process creates a positive feedback loop. As these ancient microorganisms break down organic matter, they release carbon dioxide and methane, further accelerating global warming and increasing atmospheric greenhouse gas concentrations.
