CO2 and life

Carbon Dioxide in the atmosphere is essential to life on earth and is directly responsible for the food we eat and the oxygen we breathe. As of March 2009, carbon dioxide in the Earth's atmosphere was at a concentration of 387 ppm by volume.

The images below demonstrate how added CO2 affects plant growth:
(Numbers are parts per million OVER THE AMBIENT LEVEL of 387ppm)


For more information see:

Our food supply depends on plant growth.

Maybe we should not be so cavalier about assigning a level that is less than optimum.

Some say 350ppm has some significance. Why not 700ppm or 1000ppm?

This entry was posted in Care of the Planet, Possibly Helpful Advice and tagged , , . Bookmark the permalink.

0 Responses to CO2 and life

  1. Zack says:

    Probably the best argument for stopping early is we don’t know what “optimum” is but if we ever hit it and then plants start being stunted or process CO less efficiently we then are racing to destruction with no recovery possible.

    It takes decades to even slow production. Also it is plants only bind carbon into a new form. As plants die carbon is released by bacteria as CO again.

    Part of the problem is that we are taking carbon in very stable forms: oil, coal, natural gas and converting it into a less stable form that will take centuries to be processed back into stable forms.

    We don’t get a second chance and we have no control to fall back upon if we screw thingss up.

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