UPSC 2025EnvironmentModerate

The World Bank warned that India could become one of the first places where wet-bulb temperatures routinely exceed 35 °C. Which of the following statements best reflect(s) the implication of the above-said report? I. Peninsular India will most likely suffer from flooding, tropical cyclones and droughts. II. The survival of animals including humans will be affected as shedding of their body heat through perspiration becomes difficult. Select the correct answer using the code given below.

A
I only
B
II only
C
Both I and II
Correct Answer
D
Neither I nor II

Explanation

Option (C) is correct because a wet-bulb temperature of 35°C is the theoretical limit of human survivability where the body can no longer cool itself via perspiration (Statement II), and the World Bank report specifically links these rising temperatures to intensified extreme weather events like floods and cyclones in the Indian subcontinent (Statement I). Option (B) is the most tempting wrong choice as candidates often focus only on the physiological definition of wet-bulb temperature, overlooking the broader environmental implications cited in the report. The core concept being tested is the **wet-bulb temperature threshold** and its impact on human physiology and regional climate stability.

Climate ChangeWet-bulb TemperatureWet-bulb temperatureHeatwavesWorld Bank reportPerspirationHeat stress

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