Reforestation
Much of North America, especially in the eastern U.S. and
Canada, was deforested early in the 19th century. Much of this forest is now
regrowing. As the forest
grows in size, carbon is incorporated into the trees.
This accounts for perhaps 0.5
gigatons of carbon. Of the
8.5 gigatons being put into the atmosphere, weÕve now accounted for roughly 6.1. That leaves 2.4
to go.