“The rest is manmade, so the manmade percentage is at least 25%.”
That is what it said on the EPA site. Still, 25% of .04% is .01%, correct?
That’s correct.
no that is not correct= 25% of 0.04% = 0.0096
I’m sorry- for some, reason I read your post as saying “= 1%”
however, man produces just 3.4% of the atmospheric CO2, not 25% as some claim- Perhaps those claiming that are referring to ‘greenhouse gases’ as well, but even at that, it’s not 25%
Dinosaur Era Had 5 Times Today’s CO2”
http://www.livescience.com/44330-jurassic-dinosaur-carbon-dioxide.html
“One of the researchers’ goals is to understand the strong link between climate and volcanic CO2 emissions,”
“Similarly, atmospheric concentrations of carbon dioxide (CO2) in the Early Carboniferous Period were approximately 1500 ppm (parts per million), but by the Middle Carboniferous had declined to about 350 ppm — comparable to average CO2 concentrations today!”
http://geocraft.com/WVFossils/Carboniferous_climate.html
man’s contribution of CO2 which comprises just 0.00137% of the atmosphere does diddly squat in regards to affecting the climate