The Fan paper noted that North American fossil emissions of carbon were 1.6 Pg / yr in 1990. (realclimate.org)
At present, the government's accounts offset excess fossil emissions by claiming credit for carbon sequestered in crop forests. (sustainabilitynz.org)
For example, as I showed in one of my posts, the Ceres plan assumes 80 % chance of remaining under 2 C, and would allow the equivalent of 33 years of today's full - time fossil emissions if extrapolated to zero emissions. (realclimate.org)