Q21 · UPSC Prelims 2026 · Set A · Environment and Ecology

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Consider the following statements with reference to India's response to climate change:I.India's Long-Term Low Emission Development Strategy (LT-LEDS) is a crucial tool for achieving net-zero emissions by 2070.II.India's 4th Biennial Update Report (BUR-4) submitted in December, 2024 recorded around 8% decrease in Greenhouse gas emissions in 2020 over 2019.III.Climate-resilient development necessarily depends on quick and short-term achievement of emission reduction targets. Which of the following relationships among the above statements is/are correct?1.Statement I : is empirically supported by statementII.2.Statement III : contradicts the approach implicit in statementI.3.Statement I : andstatement III :together establish the premise of long-term sustainability. Select the answer using the code given below:

A 1 only
B 1 and 2
C 2 and 3
D 3 only

Correct answer: (b) 1 and 2

Explanation

  1. A

    1 only

    1 only. Incomplete. Relationship 1 is right — BUR-4’s reported ~8% GHG fall in 2020 over 2019 supplies empirical climate-inventory support around Statement I’s LT-LEDS / net-zero framing — but relationship 2 is also correct, so “1 only” is not the key.

  2. B

    1 and 2

    1 and 2. Correct. Statement I (LT-LEDS as a long-term tool toward net-zero by 2070) is empirically supported by Statement II’s BUR-4 emission figure; Statement III’s insistence on quick, short-term emission cuts contradicts the long-term pathway implicit in Statement I. Relationship 3 fails because I and III pull in opposite directions and do not jointly set a long-term sustainability premise.

  3. C

    2 and 3

    2 and 3. Incorrect. Relationship 2 is right, but relationship 3 is not: Statement I and Statement III contradict each other, so they cannot together establish long-term sustainability.

  4. D

    3 only

    3 only. Incorrect. Statement I and Statement III do not together establish a long-term sustainability premise; III’s short-term-cuts logic cuts against I’s long-term LT-LEDS approach.

Summary. Official key is (b): relationships 1 and 2 hold — BUR-4 empirically backs the LT-LEDS climate-response frame, and Statement III contradicts I’s long-term approach — while relationship 3 does not.

Same topic · past papers

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