Socialized Health Care in the USA

[kandrathe]

Maybe the professor forgot that there is a reason why we exhale CO2. He isn't a biologist or doctor, after all. Ah well, let's hope he never finds himself locked in a room with more as 10%. He might not be able to correct his statements afterwards.

Right, we exhale because we are polluted. People who are in good shape produce less CO2, so maybe the EPA should regulate fitness as well.

CO2 is toxic in higher concentrations: 1% (10,000 ppm) will make some people feel drowsy. Concentrations of 7% to 10% cause dizziness, headache, visual and hearing dysfunction, and unconsciousness within a few minutes to an hour.

Yeah? Tell that to a plant.