While Cois the best known global warming gas, is accumulating twice as fast and absorbs 20-30 times more heat than carbon dioxide.

Options

A. nitric oxide
B. ozone
C. sulfur dioxide
D. methane

Answer

### Step-by-Step Text Solution:

1. **Understanding Global Warming**:
- Global warming refers to the gradual increase in the Earth's average surface temperature due to the accumulation of greenhouse gases in the atmosphere.

2. **Identifying Greenhouse Gases**:
- The most well-known greenhouse gases include carbon dioxide (CO2) and carbon monoxide (CO). However, there are other gases that also contribute to global warming.

3. **Analyzing the Given Information**:
- The question mentions that carbon monoxide is accumulating twice as fast as CO2 and absorbs significantly more heat. This indicates that CO is a potent greenhouse gas, but we need to identify another gas that contributes to global warming.

4. **Considering Other Gases**:
- The transcript mentions several gases: Nitric Oxide, Ozone, Sulfur Dioxide, and Methane.
- Nitric Oxide and Sulfur Dioxide are primarily associated with acid rain rather than global warming.
- Ozone is a protective layer but can also act as a greenhouse gas when present in the lower atmosphere.

5. **Identifying Methane**:
- Methane (CH4) is highlighted as a significant greenhouse gas. It is known to be much more effective at trapping heat in the atmosphere compared to CO2, being 20-30 times more potent in terms of heat absorption.

6. **Conclusion**:
- Based on the information analyzed, the gas other than CO2 and CO that participates in global warming is Methane.

### Final Answer:
- The gas other than CO2 and CO that participates in global warming is **Methane**.

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