GS1 · 10 marks · 150 words

What are the potential consequences of Arctic ice melt on biodiversity and ecosystems? How might these changes impact global ecological balance?

Answered by 8 toppers · CSE 2022–2025

Syllabus: Geographical features and their location-changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.

How toppers approached it

From 6 of the 8 answers · about 160 words · 67% drew a diagram.

Opening

  • A figure67%
  • No separate opening33%

Body

  • Points67%
  • Points and prose33%

Close

  • No separate close33%
  • A summary33%
  • A way forward33%

The toppers’ answers

Raghav JhunjhunwalaAIR 4 · CSE 2025 · 164 wordsTheir whole copy

Opening · a figure

As per recent ICIMOD's estimates, Arctic could witness Ice-Free Summers by as early as 2040, threatening grave consequences:

Body · points

Impact on Biodiversity

(1) Drastic decline being witnessed in population of Polar Bears, Arctic seals, etc

(2) Southward (below the Poles) movement of species for hunting (Ex: Gentoo Penguins)

(3) Boreal Forests : Increasing fires ("Gateway to Hell")

Impact on Ecosystem

(*) Cryosphere plays a critical role in Earth's Ecosystem balancing.

(1) High Albedo (reducing) → -ve impact upon Earth's heat Budget

(2) Severe impact upon Ocean currents : weakened Arctic meridional circulation

Impact upon Global Ecological Balance :

(1) Thawing of Permafrost → Release of CO2, CH4 Further deterioration ← & Global warming ↑ (Arctic Amplification)

(2) Loss of world's largest expanse of Forests (Boreal)

(3) Increased man-Animal conflicts

(4) Movement towards 6th mass Extinction.

Close · a summary

Thus, Arctic melting possesses great threats, esp. given the fact that it is not a continent as like Antarctica & once lost, would be difficult to recover.

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