With reference to CO2 and non-CO2 pollutants, consider the following statements; 1. The contribution of CO2 gases to global heating is less compares to non-CO2 pollutants. 2. Non-CO2 pollutants include methane, black carbon, hydrofluorocarbons (HFC), tropospheric ozone and nitrous oxide.Which of the statements given above is/are correct? |ForumIAS

[A] 1 only

[B] .2 only

[C] .Both 1 and 2

[D] Neither 1 nor 2

Answer: B

Notes:

Statement 1 is incorrect: The contribution of CO2 gases to global heating is more compares to non-CO2 pollutants. IPCC Working Group reports have shown that the contribution of CO2 and non-CO2 greenhouse gases to global heating was 52-57% and 43-48%, respectively.
Statement 2 is correct: Non-CO2 pollutants include methane, black carbon, hydrofluorocarbons (HFC), tropospheric ozone and nitrous oxide.

Source: DTE