[Rockhounds] The Human Brain Evolved When Carbon Dioxide Was Lower

[Mike Flannigan]

Hey wait a minute.  That sounds like some
independent thinking there.  I'm thinking
we need a law against that :-)


Mike


On 12/24/19 11:42 AM, rockhounds-request at rockhounds.drizzle.com wrote:
> 1000 ppm eh? Well just think about this, 10,000 ppm is 1% and humans
> can tolerate several percent CO2 (or 20,000 to 30,000 ppm) without any
> problems. So this is a case of "lying with numbers" that the
> Climanista religion types like to engage in.
>
> BK