Why in News

  • It’s in the news of late because of its character as a potent climate pollutant

  • While climate talks have by and large focused on carbon and carbon dioxide emissions.

  • There is increasing acknowledgement among the world’s leaders as well as philanthropists of methane’s effects on global warming

Methane emission

  • Methane is an organic compound

  • Its molecule consists of carbon and four hydrogen atoms (CH4)

  • At the ongoing COP-28, a group of well-endowed philanthropic bodies, including the Sequoia Climate Foundation and the Bezos Earth Fund, announced that they would collectively invest $450 million in solutions to tackle methane emissions.

  • Methane has a greater global warming potential (GWP) than carbon dioxide

  • The GWP is a measure of the warming caused by a substance relative to that due to the same mass of carbon dioxide.

  • The GWP100 measures this over a century at a time. 

  • If carbon dioxide has a GWP100 of 1, methane is 28, nitrous oxide is 265, and sulphur hexafluoride is 23,500. 

  • That is, it’s a short-lived climate pollutant. 

  • Its sources include cattle-farming, landfills, wastewater treatment facilities, rice cultivation, and some industrial processes.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Methane UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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