I asked a similar question earlier, but didn't phrase it very well, so let me try again.
There are 2 common arguments that CO2 can't be causing the current global warming. The entire arguments are that
1) CO2 can't be causing the current warming because it only comprises 387 parts per million (ppm) of our atmosphere, or 0.00387%.
2) CO2 can't be dangerous or a pollutant because it's 'plant food.'
Well, some plants eat arsenic:
http://www.physorg.com/news64159534.html
And the scientific consensus is that arsenic is toxic at 10 parts per billion (ppb), or 0.0000001%.
http://www.news-medical.net/?id=5058
But I'm sure it's just a hoax. Nothing can be dangerous at such low levels.
So I ask the anthropogenic global warming doubters - if I gave you a glass containing the same concentration of arsenic as the atmosphere contains CO2 (387 ppm), would you drink it?
If not, will you accept that CO2 *might* be causing the current warming?
2007-11-20
04:08:49
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16 answers
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asked by
Dana1981
7
in
Global Warming