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Global warming update

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May. 15th, 2008 | 01:50 pm

There are a couple major studies released in the current issue of Nature.

High-resolution carbon dioxide concentration record 650,000–800,000 years before present Figure 1 shows concentrations for 650,000 to 800,000 years ago, the the values for CO2 concentration ranges from 180 ppm to 260ppm (We're currently at ~380 ppm).

Figure 2 shows a strong correlation between global temperature and CO2 levels.

And this "Web Focus" for the EPICA project (which produced the above paper) seems to be freely available.

Another study, Warming world altering thousands of natural systems, has found:

Most (about 90% of the >29,500 data series, P << 0.001) changes in these systems at the global scale have been in the direction expected as a response to warming. Ninety-five per cent of the 829 documented physical changes have been in directions consistent with warming, such as glacier wastage and an earlier spring peak of river discharge. For biological systems, 90% of the approx 28,800 documented changes in plants and animals are responding consistently to temperature changes (mostly by means of earlier blooming, leaf unfolding and spring arrival).

Attributing physical and biological impacts to anthropogenic climate change,
Cynthia Rosenzweig, et.al. Nature 453, 353-357 (15 May 2008)

Those are changes that have been documented since 1970. Global Warming is real, it is happening right now, and we need to deal with it Now.

(Alas the second paper may not be freely available.)

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Comments {3}

(no subject)

from: aerynvale
date: May. 15th, 2008 10:28 pm (UTC)

ogod all the html is broken. x.x

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Diane Trout

(no subject)

from: alienghic
date: May. 15th, 2008 10:51 pm (UTC)

No, only the first piece of HTML was broken. @$#(*, Stupid doubple-quote.

Thank you for telling me.

You'd think I'd learn to be less lazy and actually use the preview button before posting.

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(no subject)

from: prof_reed
date: May. 16th, 2008 08:30 pm (UTC)

Of course studies reinforce what the IPCC has been telling us now consistently through 4 revisions. The science is and has been there for anyone who wanted to take the time to look at it. What has been missing is the business motivation. Fox News position has been: 1) there is no global warming, 2) if there is global warming humans didn't cause it, 3) if humans caused it its too expensive to fix anyhow. However as China and Indian quickly supplant us as the number one polluters in the world, there will be a new impetus to find new and cheaper ways to sequester carbon and eliminate greenhouse gases in the first place. James Fallows in the Atlantic this month has an interesting article about China's innovation in order to reduce their pollution. Worth a read if you haven't seen it. http://www.theatlantic.com/doc/200806/pollution-in-china The United States only hope of continuing our standard of living is through innovation that we then sell to the world. If we fall behind in the green race China and India will take that away from us. The kind of investment Obama has been talking about (150 bil) is necessary if we are to survive economically as well as environmentally.

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