What is the correct increasing order of Global Warming Potential of the following Greenhouse Gases?

Question

What is the correct increasing order of Global Warming Potential of the following Greenhouse Gases?

I. Methane

II. Fluorinated Gases

III. Carbon dioxide

IV. Nitrous Oxide

Select the correct answer using the codes given below:

1. A. III, II, I, IV
2. B. II, III, I, IV
3. C. I, II, III, IV
4. D. III, I, IV, II (Correct answer)

Correct Answer

Option D — III, I, IV, II

Detailed Solution & Explanation

The correct answer is III, I, IV, II.

Key Points

• Global Warming Potential (GWP, 100-year): CO₂ (III) = 1 (baseline) < Methane (I) ≈ 25–28 < Nitrous Oxide (IV) ≈ 265–298 < Fluorinated gases (II) = thousands to tens of thousands.
• Correct increasing order: III < I < IV < II.