- Mar 2007
Won't you be shocked to find out that Co2 isn't toxic until it reaches 10,000-20,000 ppm?It is fairly easy to determine how the atmospheric composition will affect life. Build a large test facility and stock it with various plants and animals. Alter the gas composition and see how it affects the test subjects. At some point it will start to kill some of them. Then compare that point with the current atmosphere and you will be able to calculate how much change the environment can tolerate and when the point of no-return will be reached. Several large projects like that could probably be done for as little as $10 Billion. The ones involving sea life could be very easy.
It makes all the sense in the world to de-carbonize.
But it also makes scientific sense to not exaggerate and scare people.
But you already knew that, didn't you?
At what concentration does CO2 become toxic to humans? | PSI Intl
the concentration of CO2 needs to increase 150-fold for the CO2 to become toxic