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UPSC 2014: 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. 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.
(a)1 only
(b)1 and 2 only
(c)2, 3 and 4 only
(d)1, 2, 3 and 4
Attempt This Question
Not attemptedCorrect Answer: (b) 1 and 2 only
IPCC assessments project that warming above about 3 °C would likely turn the terrestrial biosphere from a net carbon sink to a net carbon source and trigger large-scale coral bleaching and mortality. However, total permanent disappearance of all wetlands and the absolute impossibility of cereal cultivation worldwide are not supported by scientific evidence. Hence only statements 1 and 2 are correct. ([edukemy.com](https://edukemy.com/blog/upsc-prelims-2014-question-paper-with-answer-key-general-studies-paper-1/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2014 Environment & Ecology question?▼
The correct answer is option (b): 1 and 2 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Climate Change & Greenhouse Gases question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2014, GS Paper 1, as Question 53. It falls under Environment & Ecology > Climate Change & Greenhouse Gases.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Climate Change & Greenhouse Gases?▼
UPSC has asked 34 questions from Climate Change & Greenhouse Gases (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.