Luboš Motl with some basic facts about CO2 exposure

iMatter: Your house is uninhabitable for most species

iMatter March, a children’s astroturf climate activist organization that will organize a march of broken glass between 7th and 14th of this month, has released their research about the end of the world in 2050:

Scientists that dedicate their entire lives to studying this, have made it clear: to avert the worst effects of climate change, the levels of CO2 in the atmosphere need to be at 350 parts per million (ppm). Right now we are at 391ppm. If we keep burning at the rate we are now, we will be at 500ppm by 2050. This would make earth a completely different planet, uninhabitable for most species. We can’t let that happen.

Oh, really? In that case, we must be careful about our puppies, kittens, and other pets not to get into our house, to protect their life. ;-) The reality is that 500 ppm is totally harmless for all known species on the planet – and actually well below the average concentrations we experience in our everyday life. (The Reference Frame)

One response to “Luboš Motl with some basic facts about CO2 exposure

  1. rogerthesurf

    Here are some facts which may be of interest to you.
    A scientist untainted by the AGW lobby would say that a concentration of about 1,000ppmv would be beneficial to life on earth, this being the concentration that Glass House growers prefer, http://api.ning.com/files/X-APctmkiwvgEI5fT6iiGjWFvKNX*cWuzeO4qmDVbgA_/Greenhouses.CarbonDioxideInGreenhouses.pdf
    Our exhaled breath is about 4500ppmv http://www.biotopics.co.uk/humans/inhaledexhaled.html
    Up to 5000ppmv is acceptable for work places (American Conference of Governmental Industrial Hygienists.).
    Up to 3000ppmv for residences (Canadian exposure guideline for residential buildings)”
    Medical oxygen has between 10,000 ppmv and 20,000 ppmv in it.
    http://www.bocsds.com/uk/sds/medical/10_carbondioxide_oxygen.pdf
    http://www.bocsds.com/uk/sds/medical/10_carbondioxide_oxygen.pdf
    Currently our atmosphere has about 380 ppmv in it.
    Furthermore, some scientists credit the extra CO2 in our atmosphere as the reason for our increased food production.
    http://www.sciencedaily.com/releases/2009/02/090209205202.htm
    Cheers

    Roger

    http://www.rogerfromnewzealand.wordpress.com

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