4 ms·
Methane lasts about 9 years in the atmosphere, whereas CO2 lasts 300-1000 years
by paulsutter 4y ago
Methane lasts about 9 years in the atmosphere, whereas CO2 lasts 300-1000 years
- blueflow 4y agoAnd Methane decomposes into CO2 and Water. So Methane is, in sum, always worse than the same amount of CO2.
- gumby 4y agoMethane (CH4) causes 80-100X the radiative forcing than CO2. So even though CO2 levels are >400 ppm and CH4 is "only" 2 ppm (natural levels are about 1/3 of that) the rise of methane levels is estimated to be responsible for a temperature rise of about 0.5 C -- in other words a third of anthropogenic temperature rise.
- bmismyname 4y agoWhich is why the carbon needs to stay in the ground. But we're taking it out and pumping it into the atmosphere as fast as we can so that we can get a new iPhone every year.