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Geography Optional 300+ Score Pack · Model answer

“Anthropogenic impacts have caused major global and regional changes and imbalances in ecosystem.” Elucidate with examples.

  • UPSC 2026
  • Environmental Geography

An ecosystem holds together through energy flow, nutrient cycling and trophic regulation. Human impact works by breaking one of these loops, after which the system does not shrink so much as reorganise into a simpler state.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • How human forcing enters an ecosystem
  • Global changes
  • Regional imbalances
  • Where the settled account is contested
  • Judgement

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