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Global Warming conference (CO2 increase)
" I was working on the photosynthesis of plants (CO2 uptake variation in single leaves) in the middle 70s using an IR gas analyzer, I vaguely remember that the atmospheric CO2 concentration, as measured at that time was in the region of 0.033% (300ppm) which strangely enough fits in very well with their graph. Regards Don SORRY, FOR 300PPM READ 330PPM |
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