Civil Services Prepby Garima Malik & Nitin Sangwan Account

UPSC Prelims · General Studies

Geography

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Climatology

Climate change: the physical basis

Concepts to cover

  1. Greenhouse gases (carbon dioxide, methane, nitrous oxide, CFCs, ozone) as absorbers of long-wave radiation; global warming
  2. Natural causes: volcanism, Milankovitch orbital cycles, solar variability, continental drift
  3. Evidence of past climate: ice cores, glacial and interglacial periods, historical records
  4. Aerosols, clouds and feedbacks in the climate system