Climate Change: UPSC Previous Year Questions (Environment and Ecology)
1 previous year UPSC Prelims question on Climate Change (Environment and Ecology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 2014Environment and Ecology · Climate Change
Q1. The scientific view is that the increase in global temperature should not exceed 2°C above the pre-industrial level. If the global temperature increases beyond 3°C above the pre-industrial level, what can be its possible impact/impacts on the world? 1. The terrestrial biosphere tends toward a net carbon source. 2. Widespread coral mortality will occur. 3. All the global wetlands will permanently disappear. 4. Cultivation of cereals will not be possible anywhere in the world. Select the correct answer using the code given below:
Explanation
Statement 1 is correct: If the global temperature increases beyond 3 “C above the pre-industrial level, the terrestrial biosphere will tend towards being a net carbon source. Taiga and temperate forests act as an important carbon sink that would turn into a carbon source.
Statement 2 is correct: As temperatures rise, mass coral bleaching events occur. If the temperature keeps on rising, widespread coral mortality will occur.
Statement 3 and 4 are incorrect: The temperate regions can still survive if the temperature increases. The temperate zones are where the widest seasonal changes occur. The vegetation can survive there. The weather should be warm and moist during the early stage of the growth of cereals. Therefore, the cultivation of cereals would still be possible if the temperature rises.
Answer key for these questions
Q
UPSC year
Correct answer
1
2014
(b) 1 and 2 only
Frequently asked questions
How many previous year UPSC questions are there on Climate Change?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Climate Change (Environment and Ecology), asked from 2008 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Climate Change?
Questions on Climate Change (Environment and Ecology) are available for 14 years, from 2008 to 2025. Use the Year filter to practise a single paper.
