My interest is in the impact of the pp CO2, or rather its reduction and growth has had on the evolution and extinction of animal life forms on planet Earth, if any. --Bolandista (talk) 20:46, 5 March 2010 (UTC)
My interest is in the impact of the pp CO2, or rather its reduction and growth has had on the evolution and extinction of animal life forms on planet Earth, if any. --Bolandista (talk) 20:46, 5 March 2010 (UTC)