This study investigates bow much the costs of stabilizing net carbon e
missions in the United States at 1990 levels between 1990 and 2030 can
be reduced by using trees to sequester carbon. Using the Fossil2 ener
gy/economic model maintained by the U.S. Department of Energy, we esti
mate that trees can reduce the overall costs of stabilizing net carbon
emissions by as much as 80 percent. More work is needed to verify the
magnitude of the cost reduction.