Over 100 years, methane traps about how many times more heat than carbon dioxide?
- AAbout 300 times
- BAbout 3 times
- CAbout 1,000 times
- DAbout 28 times
Show answer and explanation
Correct answer: (d) About 28 times
Explanation
Methane's global warming potential over 100 years is about 28. It is the second-largest cause of human-made warming after CO2.