Posted by T in NE on January 04, 2015 at 07:03:35 from (173.209.212.207):
In Reply to: Re: Math question, CO2? posted by Ron muhlenkamp on January 03, 2015 at 19:20:07:
Infrared satellite pictures during the growing season show the corn belt lit up like a stoplight from the photosynthesis. So yes, crops make oxygen, for part of the year. I'd guess a lot shorter period than trees. I've never heard any number on it though. All across the plains there's more trees than there was before the white man arrived. Thicker grass, too. Without active management of range lands the weeds take over and grasses tend to die off.
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