Melting Arctic permafrost could unleash dangerous new pathogens

As the Arctic warms rapidly, thawing permafrost is releasing ancient microbes and creating new health risks that remain largely unstudied.

Valerie Brown reports for Bulletin of the Atomic Scientists.

In short:

• The Arctic is warming four times faster than the global average, destabilizing permafrost and creating new microbial ecosystems.
• Thawing permafrost could release ancient pathogens or facilitate the spread of new diseases as microbes travel with shipping, wildlife and resource extraction workers.
• Limited data, especially from Russia, hinders the ability to predict or monitor emerging Arctic pathogens.

Why this matters:

Thawing permafrost could unleash microbes capable of sparking new diseases, threatening Arctic communities and potentially spreading globally. Increased shipping, resource extraction and wildlife migration create pathways for these pathogens to travel, posing significant public health risks.

Related: Polar bears are increasingly exposed to diseases due to warming Arctic