Even Greener and Greener

BP Global - Environment and society - Carbon footprint calculator

Used a different "carbon footprint calculator" (BP) and found that our "footprint" may be even smaller.

Combined with our prior calculation on our woodlot, it looks like we may sequester 245% of the carbon we generate.

Lots of assumptions in these tools, so I'll be real conservative and call it 2:1

Then we take a look at the rest of our woodlot:

Factors Controlling Long- and Short-Term Sequestration of Atmospheric CO2 in a Mid-latitude Forest -- Barford et al. 294 (5547): 1688 -- Science:

"Net uptake of carbon dioxide (CO2)measured by eddy covariance in a 60- to 80-year-old forest averaged2.0 (plus or minus) 0.4 megagrams of carbon per hectare per year during 1993 to 2000, with interannual variations exceeding 50%. Biometry indicated storage of 1.6 (plus or minus) 0.4 megagrams of carbon per hectare per year over 8 years, 60% in live biomass and the balance in coarse woody debris and soils, confirming eddy-covariance results.
Weather and seasonal climate (e.g., variations in growing-season length or cloudiness) regulated seasonal and interannual fluctuations of carbon uptake. Legacies of prior disturbance and management, especially stand age and composition, controlled carbon uptake on the decadal time scale, implying that eastern forests could be managed for sequestration of carbon."

Taking the lower end of the estimates, it looks like we almost match our footprint with the non-pine portion of our lot.
"Back of envelope" (spreadsheet) numbers look like sequestration of over 22 tons.

BP Calculator came up with footprint of 25 tons.

"Carbon Footprint" (Carbon Footprint calculator) came in around 32.5 to 35 depending on some assumptions.

"Climate Crisis" )An Inconvenient Truth > Carbon Calculator) came in between 22.5 and 25 depending on assumptions.