how many trees?

According to one study, it’ll take about 1.2-trillion trees to absorb enough carbon to completely neutralize and reverse the carbon-emissions greenhouse effect that is (apparently) going on around the world.  Deforestation in various places should be reversed; the land there isn’t good for much anyway except forest as they’ve been ranched to death.  People plant green grass in their front lawns; how about shrubs, fruit trees, shade trees?  Anyway, I thought it was interesting.

Carpeted in trees, the 2.82 million hectare Chiribiquete National Park in Colombia sucks CO2 from the atmosphere. (CNN)