The Arctic is breaking its own climate rules, and scientists say it’s getting dangerous
GS3Economy · S&T · Environment · Security· Climate change & international agreements· Mains·
Why in news
Scientists reported a new era of extreme bioclimatic events in the Arctic, where nearly one-third of the land area is experiencing unprecedented weather patterns.
Background
A study titled 'A new era of bioclimatic extremes in the terrestrial Arctic' identifies frequent and intense events like sudden winter thaws, rain-on-snow freezing, and heatwaves. These events are causing significant damage to Arctic flora and fauna across nearly one-third of the land area.
Facts for Prelims
- EnvironmentArctic bioclimatic extremes include sudden winter thaws and rain-on-snow freezing into ice.
- FactNearly one-third of the Arctic land area is currently experiencing these extreme weather events.
- S&TThe study identifies that these events have no historical precedent, hindering ecosystem adaptation.
For Mains
Q. Discuss how the emergence of unprecedented bioclimatic extremes in the Arctic poses a threat to global climate stability and biodiversity.
Dimensions to cover in your answer
- Ecosystemic shock: Rapid loss of biodiversity due to lack of evolutionary adaptation to sudden thaws
- Feedback loop risk: Accelerated melting of permafrost and ice sheets affecting global thermohaline circulation
Keywords: bioclimatic extremes · ecosystem adaptation · Arctic amplification · climate resilience · biodiversity loss
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