April 5, 2025

45 thoughts on “The Hindu Newspaper Analysis LIVE | 2nd November | UPSC Current Affairs Today | Chethan N

  1. In descending order, the gases that contribute most to the Earth's greenhouse effect are:

    water vapour (H2O)

    carbon dioxide (CO2)

    nitrous oxide(N2O)

    methane (CH4)

    ozone (O3) thank you very much chethan sir , it was amazing session sir

  2. Just saw the ARRAY FOREST protest done by youths n environmentalist.. lyk neither govt nor industrialists r actually understanding the concern, same in case of A&N dev projects why can't they make development including nature purpose n survival as well why they want to develop lyk every developed nation become can't we make our own model where infrastructure includes mother nature on top…

  3. Here's a list of common greenhouse gases, arranged in descending order of their Global Warming Potential (GWP) over a 100-year time frame:

    High GWP (>100):

    1. Sulfur hexafluoride (SF6) – GWP: 22,800
    2. Nitrogen trifluoride (NF3) – GWP: 17,200
    3. Fluorinated gases (F-gases) – GWP: 12,200-14,800
    4. Perfluorocarbons (PFCs) – GWP: 7,000-11,900
    5. Hydrofluorocarbons (HFCs) – GWP: 1,300-12,200

    Moderate GWP (10-100):

    1. Chlorofluorocarbons (CFCs) – GWP: 4,680-11,700
    2. Hydrochlorofluorocarbons (HCFCs) – GWP: 76-2,160
    3. Methyl chloride (CH3Cl) – GWP: 13-55
    4. Methyl bromide (CH3Br) – GWP: 5-30

    Low GWP (<10):

    1. Carbon dioxide (CO2) – GWP: 1
    2. Methane (CH4) – GWP: 28 (over 100 years), 84 (over 20 years)
    3. Nitrous oxide (N2O) – GWP: 265-298
    4. Ozone (O3) – GWP: 2-5
    5. Water vapor (H2O) – GWP: dependent on concentration

    Note:

    – GWP values vary depending on the time frame considered (20, 100, or 500 years).
    – The Intergovernmental Panel on Climate Change (IPCC) provides GWP estimates.
    – This list is not exhaustive but covers major greenhouse gases.

    Sources:

    1. IPCC Fifth Assessment Report (2013)
    2. United States Environmental Protection Agency (EPA)
    3. National Oceanic and Atmospheric Administration (NOAA)

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