Environmental Performance Index (EPI)

1️⃣ What is the Environmental Performance Index?

The Environmental Performance Index (EPI) ranks countries based on their environmental health and ecosystem vitality.

It evaluates how well countries perform on environmental protection parameters.

It is not about climate alone.
It covers broader environmental performance.

2️⃣ Who Publishes It?

Published by:

Yale University
In collaboration with Columbia University

Prelims trap:

It is NOT published by:

  • UNEP

  • UNDP

  • World Bank

  • IMF

Very commonly confused.

3️⃣ What Does It Measure?

The index broadly measures two main areas:

  1. Environmental Health
    • Air quality
    • Drinking water
    • Heavy metals

  2. Ecosystem Vitality
    • Biodiversity
    • Climate change
    • Forests
    • Fisheries

UPSC may give statements asking which indicators are included.

4️⃣ India’s Latest Rank

📌 Environmental Performance Index 2022 (latest full release):

India ranked 180th out of 180 countries

India ranked last in that edition.

This created significant debate domestically.

Note:

EPI is not released every year in the same pattern.
2022 is the latest major full report used in exams.

5️⃣ Why It Was Controversial

India raised concerns about:

• Methodology
• Weightage of indicators
• Data assumptions

But for prelims, you stick to report data.

Opinion does not matter.

6️⃣ Difference: EPI vs Climate Risk Index

EPI measures environmental performance.

Climate Risk Index measures vulnerability to extreme weather events.

UPSC may mix these two.

7️⃣ Static Linkage

Related topics:

• Paris Agreement
• Biodiversity targets
• Net-zero commitments
• National Action Plan on Climate Change

UPSC may combine EPI with climate commitments.

8️⃣ Common Prelims Traps

  • Confusing publisher (Yale vs UN).

  • Thinking EPI measures only climate change.

  • Mixing it with SDG Index.

  • Assuming it measures GDP-linked sustainability.

  • Forgetting India ranked last in 2022 edition.

9️⃣ Likely Question Patterns

• Which organisation publishes Environmental Performance Index?
• Which of the following are components of EPI?
• What does EPI primarily evaluate?
• Difference between EPI and SDG Index?

🔁 Quick Recall Box

✔ Published by: Yale & Columbia Universities
✔ Latest India rank (2022): 180 / 180
✔ Measures environmental health + ecosystem vitality
✔ Not a UN index
✔ Broader than climate metrics

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