Re: Higher Carbon Dioxide May Give Pine Trees A Competitive Edge

That's because CO2 levels in the atmosphere, compared to records over the last 300 million years (determined from a variety of sources, mainly rock samples), is at an "historic" low. Cambrian level CO2 levels were 18 times higher than today. Use your google noodle and find the truth inconvenient to Al Gore.

Please stop getting your "facts" from Rush.

Quote
Vince
That's because CO2 levels in the atmosphere, compared to records over the last 300 million years (determined from a variety of sources, mainly rock samples), is at an "historic" low. Cambrian level CO2 levels were 18 times higher than today. Use your google noodle and find the truth inconvenient to Al Gore.

Perhaps that is why only Nevadan microbial 'crud' existed on the land at that time:
http://en.wikipedia.org/wiki/Cambrian_Period

{Vince, once again you have astounded us with the depth of your knowledge.]



Edited 1 time(s). Last edit at 08/05/2009 01:35PM by szalkowski.

Check out this article rearding CO2.

http://www.newsweek.com/id/208164

Jim

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Vince
http://www.geocraft.com/WVFossils/Carboniferous_climate.html

You are advocating pond scum? Ok, if that's your thing...

This issue is not how much the earth has changed since origin, but how has it changed recently compared to similar intervals in the recent past.

The question is how did the CO2 change between 500,000 and 499,800 yrs ago? Or choose any 200 yr interval that you want in the last 600,000 yrs. Did that 200 year period represent the sort of CO2 change and temperature change earth scientists are reporting for the last 200 yrs? Not according to the journal Science:

http://www.sciencemag.org/cgi/content/full/310/5752/1313

See pages 2 and 3 in this Am Ass for Adv of Science publication:

http://www.aaas.org/news/press_room/climate_change/media/4th_spm2feb07.pdf

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The cure for a fallacious argument is a better argument, not the suppression of ideas.
-- Carl Sagan

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Vince
http://www.sciencedaily.com/releases/2008/08/080818184434.htm

Did you notice the question mark?