Which sector is the biggest emitter of greenhouse gases?

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NTPC CBT-I (Held On: 8 Jan 2021 Shift 2)
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  1. Agriculture
  2. Waste
  3. Energy
  4. Land use change

Answer (Detailed Solution Below)

Option 3 : Energy
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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Detailed Solution

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​The correct answer is Energy.

Key Points

  • The energy sector is the largest contributor of greenhouse gases, accounting for two-thirds of the total emissions.
  • It is followed by the Agriculture sector which accounts for around 20% of the greenhouse gases emission.
  • Greenhouse gases absorb infrared energy (heat energy) emitted from the earth’s surface and reradiate it back to the earth’s surface.
  • The greenhouse gases trap heat in the earth’s atmosphere and warm the planet.
  • The Primary GHGs are:
    • Water Vapour.
    • Carbon dioxide.
    • Methane.
    • Nitrous oxide.
    • Ozone
  • Distribution of Greenhouse Gases

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