Jeff Fink wrote:
LC50 for CO2 is 100,000 ppm. OSHA limits are 5,000 ppm. 2009 Ambient atmospheric levels are 389 ppm. Like I said, double the ambient level and it will have no noticeable effect on human breathing!
And like I said, human breathing has NOTHING TO DO with climatology. The global warming hypothesis is not predicated on what happens to mammals breathing air with various different concentrations of CO2.
- Jed
