[plorg]

The figure used for converting metric tons CH4 to metric tons CO2e seems quite low, and I'm not sure what exactly it means in the context of the chart you cite. Indeed, if you plug "110,000" into the calculator [1] references you get 1,247 metric tons CO2e as a result.

That calculator uses a figure of 22.7 for conversion from metric tons CH4 to metric tons CO2e. Many other sources use the number 25.

[strommen]

25 is the correct number.

22.7 is used to convert short tons CH4 to metric tons CO2e. (A "short ton" is what we call a "ton" in the US)

[plorg]

Right. I still wasn't looking closely enough.

[mkaufmann]

I corrected my calculation (using the correct 25 factor for metric tons). Thanks for the hint!