%0 Journal Article %A Robert A. Berner %T The rise of trees and their effects on Paleozoic atmospheric CO2 and O2 %J Comptes Rendus. GĂ©oscience %D 2003 %P 1173-1177 %V 335 %N 16 %I Elsevier %R 10.1016/j.crte.2003.07.008 %G en %F CRGEOS_2003__335_16_1173_0