Actually there are more trees in the US now than in the 1800s [1]. However, the downside is that there is relatively little age difference in them, since they w

Actually there are more trees in the US now than in the 1800s [1]. However, the downside is that there is relatively little age difference in them, since they were planted in the last 50 years or more. This means less diversity of habitat, and it takes a while for the critters to build up biosystems in them. Still, I'll take the positive away from it. The quick effect of actually warming the Earth was surprising to me, because if we plant so many new trees we lower the albedo, and it takes a while for the trees to scrub the CO2 to make it a net win. [1] http://www.greenoptimistic.com/united-states-trees/#.VwxsqybSqHs