Climate Change
24 UPSC CSE (Prelims) Environment and Ecology previous year questions (PYQs) from 9 papers, 2017 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 1 easy · 14 moderate · 9 hard.
- Most-asked subtopics: Carbon Markets and Carbon Sequestration (9), Greenhouse Gases and Global Warming (7), UNFCCC, Paris Agreement and COP Outcomes (4).
- Updated 29 August 2026.
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#1ModerateUNFCCC, Paris Agreement and COP Outcomes
#2HardCarbon Markets and Carbon Sequestration
#3ModerateCarbon Markets and Carbon Sequestration
#4HardClimate Finance and Adaptation
#5ModerateGreenhouse Gases and Global Warming
#6ModerateGreenhouse Gases and Global Warming
#7ModerateGreenhouse Gases and Global Warming
#8HardClimate Finance and Adaptation
#9ModerateGreenhouse Gases and Global Warming
#10HardUNFCCC, Paris Agreement and COP Outcomes
#11ModerateCarbon Markets and Carbon Sequestration
#12ModerateCarbon Markets and Carbon Sequestration
#13ModerateCarbon Markets and Carbon Sequestration
#14ModerateGreenhouse Gases and Global Warming
#15ModerateUNFCCC, Paris Agreement and COP Outcomes
#16HardClimate Initiatives and Coalitions
#17EasyCarbon Markets and Carbon Sequestration
#18HardCarbon Markets and Carbon Sequestration
#19HardClimate Finance and Adaptation
#20HardUNFCCC, Paris Agreement and COP Outcomes
#21ModerateCarbon Markets and Carbon Sequestration
#22ModerateCarbon Markets and Carbon Sequestration
#23HardGreenhouse Gases and Global Warming
#24ModerateGreenhouse Gases and Global Warming