Question Q7GS3GS2

What are the potential consequences of Arctic ice melt on biodiversity and ecosystems? How might these changes impact global ecological balance (10 marks)

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Answer Strengths Gaps Keywords

Introduction

Due to global warming initiated by increase in greenhouse gases (over 430 ppm of CO2) has led to melting of Arctic ice.

22 words

Main Body

Potential consequences of Arctic ice melt:

Biodiversity:

Reduction in shelter and home for biodiversity

Extinction of species due to inability to survive.

Migration of some species to other areas.

(E) Polar bears have reduced to less food resourced and declining ice cover.

Ecosystem:

Extinction of key species - leading to present ecosystem collapse

Development of new traits in some species to adopt to changes

New ecosystem will emerge.

(E) Migration of some species of tropical and temperate areas to Arctic regions.

Overall, loss of biodiversity and ecosystem change will occur.

This will impact the global ecological balance in several ways:

↓ Reduction in Arctic icechange in wind patternchanging ocean currents

↓ Change in upper air circulation in polar regionmeandering of polar vortex

↓ Change in climate of places all over the worlddisrupt ecological balance

148 words7 paragraphs6 bullet points

Conclusion

changes in arctic ice melt will have huge impact on global ecological balance disrupting biodiversity. Urgent actions to fulfil SDGs under Paris Agreement are necessary.

25 words

Clear structure with biodiversity and ecosystem sections
Specific example of polar bears
Mentions both negative and adaptive changes

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Page 16

Topper

Aditya Agarwal

AIR 12024

Subject & Paper

GS3GS2

Topic

Environmental Biology

Climate Change and Biodiversity

Arctic Ice Melt Consequences

Writing Stats

195

Total words

Paragraphs

Bullets

analytical

Tone