So 10 billion trees would take us back about 2.3 days. Still not a lot, but it’s something. 10 billion trees is what one can conservatively plant on 30 million

So 10 billion trees would take us back about 2.3 days. Still not a lot, but it’s something. 10 billion trees is what one can conservatively plant on 30 million acres, which is the area currently used in the US to produce bioethanol.