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Edited on Wed Feb-27-08 03:17 PM by RedEarth
......from Climate Progress......(links to all the sources sited are available at this link... http://climateprogress.org/2008/02/11/how-do-we-really-know-humans-are-causing-global-warming/ .....) How do we really know humans are causing global warming? So I’m sure that you, like me, are constantly getting e-mails or blog posts that sound like this: I have been doing enormous amounts of research in this global warming (caused by man) theories and have concluded that there is not ONE shred of evidence to back it up. Can you PROVE to me that global warming is being caused by mankind? Hmm. Not one shred of evidence? “PROVE”–in all caps, too! You know this is pointless, but still, it’s the day after your daughter’s first birthday, and you’re feeling in good spirits about humanity , so you decide to reply something like:
This one is easy. Either you believe in science — i.e. we went to the moon, you go to the doctor, you have IT equipment you rely on — or you don’t. If you don’t, I can’t “prove” anything to anybody. If you do, then the IPCC reports — which are nothing more than a literature review by the top scientists in the world, commissioned by and summarized for policymakers, signed off by every friggin’ govt in the world — are as much proof as a human being could possibly want.
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Once you realize the emailer hasn’t even bothered to read some of your recent posts, you send a reply that you think/hope will end things:
If you don’t buy into the IPCC, we have nothing to talk about. You might as well not buy into what the American Medical Association or the National Academy of Sciences says. Why take medicine? Why floss? Why get on an airplane? The IPCC report is a summary of the scientific evidence. Simple as that…. If you are talking about the well-debunked Inhofe 400, I guess you haven’t been reading this or other sites.
In retrospect, “laughable” is better than “well-debunked,” but then we all come up with better things to say after the fact. All one can do is press on and rewrite history on your blog….
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Sigh. You want some shreds of evidence global warming is caused by mankind, but the IPCC is off limits. Interesting but easy challenge. Let’s start here — It’s a few years old now, but it is the best other review of recent science by the leading experts:
“Detecting and Attributing External Influences on the Climate System: A Review of Recent Advances”
I assume you have a subscription to Science. This is a good study. “Penetration of Human-Induced Warming into the World’s Oceans.”
Then there is: “Contribution of anthropogenic and natural forcing to recent tropospheric height changes.“
Here’s NOAA: “The Detection and Attribution of Climate Change.“
I am personally fond of this often-cited paper by NASA.
Anyway, if you’re serious about wanting to review the science and don’t trust the IPCC to do it, then you should probably read the following :
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have read many of these, but, unlike you, I trust the IPCC’s ability to analyze them for me. Let me know when you’re done.
Anyway, if nothing else, perhaps this will discourage people from emailing me….
UPDATE: I just realized that the bibliography was cut off after the d’s. Oh well. Let’s see if the emailer notices….
http://climateprogress.org/2008/02/11/how-do-we-really-know-humans-are-causing-global-warming/
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