NOTE: this post has an error, see update below. – Anthony
From a Wry Heat reprinted with permission of Jonathan DuHamel
A new post on The Hockey Schtick reviews a new paper “that finds only about 3.75% [15 ppm] of the CO2 in the lower atmosphere is man-made from the burning of fossil fuels, and thus, the vast remainder of the 400 ppm atmospheric CO2 is from land-use changes and natural sources such as ocean outgassing and plant respiration.”
This new work supports an old table from the Energy Information Administration which shows the same thing: only about 3% of atmospheric carbon dioxide is attributable to human sources. The numbers are from IPCC data.
Look at the table and do the arithmetic: 23,100/793,100 = 0.029.