Posted on 02/26/2009 1:53:41 PM PST by sourcery
Some good information in the slides. The more facts that are on the table, the more laughable the taxes to fix global warming becomes.
Are you a climate scientists? I'm just an engineer who started out studying the solar wind.
There is no “correct” value of CO2, just as there is no “earth normal temperature”. However, if you drop CO2 below about 240ppm, photosynthisis begins to become impossible. This is well known and indisputed. In fact, real greenhouses generally add additional CO2 to the tune of approximately 1000ppm to make the plants grow bigger, better and faster. In fact some scientific studies show that increased CO2 in our atmosphere has helped plant growth planet wide. It also makes plants more efficient in water usage, and more drought resistant. The amount of CO2 in the atmosphere has varied greatly over the eons, and in fact during one of the largest ice ages was 15 times higher than today. If you were to think of all the air as your 1024x768 monitor and made the CO2 molecules black pixels, there would be 299 black pixels out of 786,432
The charts I have seen show ice core data at over 10 times today’s 380 ppm levels. But that’s just what I have dug up.
Where did you get the information on 240 ppm stopping photosynthesis. I am sure it would be fairly easy to run actual experiments, but just haven’t seen any data. Could be that’s why? This would be handy information to have ... I doubt all plants would die at some value, but there must be some minimum for all plants greater than zero.
I’ve seen a paper on that. I’ll look for it.
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