Climate Change

The science behind climate change, its impacts, and where India stands in the global response.

πŸ“– The greenhouse effect and causes

Certain gases in the atmosphere β€” carbon dioxide (COβ‚‚), methane (CHβ‚„), nitrous oxide (Nβ‚‚O), and others β€” trap heat from the sun, warming the Earth's surface (the natural "greenhouse effect"). Human activities, especially burning fossil fuels, deforestation, and industrial processes, have significantly increased greenhouse gas concentrations since the Industrial Revolution, intensifying this effect β€” driving anthropogenic (human-caused) climate change.

🌑️ Key impacts

  • Rising global average temperatures and more frequent heatwaves.
  • Melting glaciers and polar ice, contributing to sea-level rise.
  • More frequent and intense extreme weather events β€” cyclones, droughts, floods.
  • Disruption to agriculture, water availability, and biodiversity.

🌍 India's climate commitments

Under the Paris Agreement (2015), India has committed to reducing the emissions intensity of its GDP, achieving 50% cumulative electric power capacity from non-fossil fuel sources, and reaching net-zero emissions by 2070 β€” announced at COP26 in Glasgow (2021). India's domestic framework includes the National Action Plan on Climate Change (NAPCC), comprising eight national missions covering solar energy, energy efficiency, water, and more.

πŸ’‘ Key Facts

  • Key greenhouse gases: COβ‚‚, methane (CHβ‚„), nitrous oxide (Nβ‚‚O).
  • India announced a net-zero emissions target by 2070 at COP26 (2021).
  • India's domestic climate framework is the National Action Plan on Climate Change (NAPCC), with 8 national missions.
  • The Paris Agreement (2015) is the key global climate treaty India is party to.

πŸ”– 60-Second Revision

  • Greenhouse effect: COβ‚‚, methane, Nβ‚‚O trap heat β†’ human activity intensifies it β†’ anthropogenic climate change.
  • Impacts: warming, melting ice/sea-level rise, extreme weather, biodiversity/agriculture disruption.
  • India's commitments: Paris Agreement (2015) targets + net-zero by 2070 (COP26, 2021).
  • NAPCC: India's domestic framework, 8 national missions.

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