A global deal for postponing pralaya

Prelims level : Mains level : What happens when the level of the greenhouse gases increases? Evaluate.
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  • Temperature rise and climate change affect not just some countries but the entire globe, on which all species live- humans, animals, plants, fish, microbes.
  • The Earth and the atmosphere surrounding it receive radiation from the Sun, and get “heated”.


  • Some of the gases in the atmosphere, notably carbon dioxide (CO2) absorb this heat radiating from the earth’s surface and bounce it back.
  • This is what keeps the earth- land and seas- at a temperature range “comfortable” for us humans and the other organisms inhabiting the earth today. We thus live in a large “green house”.
  • The temperature will rise. And this rise has been due to increases in the levels of CO2 and other gases, produced upon burning carbon-rich fuels (coal, wood, petroleum products).
  • Over the last 100 years alone, the global temperature has risen by close to 2 degree. And if we do not reduce or stop these fuels and use alternate sources of energy (solar, wind and others), the global temperature will rise further.
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