Ecological themes
Ecological themes — climate, sustainability
12 min read · Updated 2026-05-25
What is an environmental essay in the UPSC Essay paper?
An environmental essay in the UPSC Essay paper is not a science paper; it tests whether a candidate can think clearly about the relationship between humans and the natural world. A strong one passes through three lenses — the ecological, covering biodiversity and conservation; the climate, covering the planetary story from the IPCC to net zero; and the ethical, covering intergenerational equity and indigenous wisdom.
The story
It is August 2018. The state of Kerala drowns. Forty-four dams open their gates at once; 5.4 million people are displaced; 483 die. The waters recede in a fortnight. Six months later a sober post-mortem by the Centre for Science and Environment finds that of the 350 lives lost in landslides, 80% died on slopes where forest cover had been removed within the last decade for tourism, quarrying, or estate cultivation.
The same year a fifteen-year-old Swedish girl sits alone outside the Riksdag with a hand-painted placard — Skolstrejk för klimatet. By 2019 her name — Greta Thunberg — is in every newspaper from Buenos Aires to Bhubaneswar. By 2024 her movement, Fridays for Future, has held strikes in 7,500+ cities across 150 countries.
Two scenes; one essay topic. "The Earth provides enough to satisfy every man's needs, but not every man's greed" — Mahatma Gandhi's line was the UPSC 2013 essay paper. It will return, in some form, every two or three years. The candidate who can move from the specifics of Kerala-2018 to the principle of intergenerational equity to the policy of the Sendai Framework — in 1,200 words and three hours — writes a top-quartile essay.
Why this matters for UPSC
Environmental essays have appeared in the UPSC Mains essay paper in 8 of the last 10 years. The marking pattern shows examiners reward candidates who avoid the doom-loop — purely catastrophic essays score in the 90s/250 range — and instead weave policy, ethics, and lived examples. Topics recur in three flavours: the philosophical ("man vs nature"), the policy ("growth vs sustainability"), and the ethical ("intergenerational justice"). All three can be prepared with the same toolkit of facts, quotes, and case studies.