where GDP is gross domestic product and CGDP carbon intensity carbon intensity being the product of

1
where GDP is gross domestic product and C/GDP
carbon intensity carbon intensity being the
product of energy intensity E/GDP and the carbon
emission factor, C/E
Per Capita Carbon Emissions Versus Per Capita
GDP of 100 Nations
Marty Hoffert 10-31-04
2
Marty Hoffert 10-31-04
3
Carbon emission reductions, wedges equivalent
emission-free power to maintain CO2 emissions
constant at 7 GtC/y for 50 years (Pacala-Socolow
500 ppm stabilization scenario)
aComputed by dividing integrated carbon emissions
avoided over the next half-century (by energy
conserving behavior, efficiency improvements and
emission free energy sources) by 25 GtC, the area
of each triangular wedge 50 years long ramping
to 1 GtC/yr high by 2054. bBased on an emission
factor of C/E 0.7 GtC/TW-yr (22 mgC/kJ)
computed for the fossil fuel component of the
IPCC IS92a BAU scenario. A 3/yr GDP growth
scenario implies massive deployment of 10-30 TW
equivalent emission-free energy sources by 2054.
Marty Hoffert 11-02-04