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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: Jorj X Mckie who wrote (31528)1/4/2011 1:07:43 PM
From: Land Shark  Read Replies (2) | Respond to of 36917
 
>...no more that 4% of the atmospheric CO2 is manmade.

This is bullshit. There's been a doubling of CO2 levels since 1880. There are two causes of the increase - burning fossil fuels and deforestation. The vast majority of the added CO2 has been unequivocally shown to be coming from burned fossil fuels.



To: Jorj X Mckie who wrote (31528)1/4/2011 5:46:10 PM
From: Jacques Chitte  Read Replies (1) | Respond to of 36917
 
I would be interested in tracking the source of the 4% estimate. Using carbon-14 isotope ratios, the answer appears closer to 40%. Since I don't know enough about the relation between isotope ratios and exchange mechanisms, that 40% I classify as "suggestive" but not "conclusive".


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