如果想以美國政府的論據為準的話,請您看一下這個。
http://epa.gov/climatechange/ghgemissions/gases/ch4.html
“Pound for pound, the comparative impact of CH4 on climate change is over 20 times greater than CO2 over a 100-year period.”
“Pound for pound, the comparative impact of CH4 on climate change is over 20 times greater than CO2 over a 100-year period.”