As per recent reports, world’s total greenhouse gas emissions have increased over the last decade mainly due to anthropogenic reasons. With this reference, consider the following statements:

  1. Chlorofluorocarbons (CFCs) are anthropogenic green house gases.
  2. Water Vapor is Earth's most abundant greenhouse gas.
  3. Carbon dioxide is several times more potent than methane.

Which of the above statements is/are correct?

Answer: [A] Only 1 & 2

Third statement is incorrect because, though, methane's lifetime in the atmosphere is much shorter than carbon dioxide; it is 84 times more potent than carbon dioxide.

This question is a part of GKToday's Integrated IAS General Studies Module