(Means in gigatonnes per year)
Year 2000 2025 2050 2075 This Study** C.V. 38-39 87 120-128 128-158 Median 6 7-9 8-11 8-13 Nordhaus/Yohe C.V. 38.4 42.2 48.0 50.4 Median 5 10 15 17
*Coefficient of variation is defined as 100 times the standard derivation divided by the mean.
**High value is in the zero correlation case, low value is in the nonzero correlation case.