Alright this is geeked out, but I did some simple math using 3 websites...
US 2010 census reports 308 million people, if each person planted one tree on Arbor Day (not happening) at roughly 36 trees per acre, and one acre sucks up 500 lbs. of pollution. We could kill 4,277,777,777 pounds of potentially toxic pollutants a year from one planting ultimately?
http://www.wildernesswind.org/ documents/Wilderness%20exchang es%2009.pdf
US 2010 census reports 308 million people, if each person planted one tree on Arbor Day (not happening) at roughly 36 trees per acre, and one acre sucks up 500 lbs. of pollution. We could kill 4,277,777,777 pounds of potentially toxic pollutants a year from one planting ultimately?
http://www.wildernesswind.org/