如果想以美国政府的论据为准的话,请您看一下这个。
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.”