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Thawing Arctic ice and permafrost are speeding up microbes, releasing greenhouse gases and mercury, worsening climate change.
Thawing polar ice and permafrost are accelerating microbial activity in Arctic and alpine regions, releasing greenhouse gases and contaminants like mercury, according to a McGill University review.
Rising temperatures boost microbial metabolism, speeding carbon cycling and worsening climate change, with extreme weather events increasing across the Arctic over the past 30 years.
These shifts disrupt ecosystems, threaten species like reindeer, and contribute to Arctic browning and carbon imbalance.
Despite their global importance, polar regions face research gaps due to limited data, funding, and accessibility.
Scientists urge expanded monitoring and international cooperation to improve climate projections.
El derretimiento del hielo ártico y el permafrost está acelerando los microbios, liberando gases de efecto invernadero y mercurio, empeorando el cambio climático.