Another 150,000 Years of CO2 Data

An anonymous reader writes, "We've known since 2004 that the past 440,000 years have shown atmospheric carbon dioxide levels varying between about 200 and 300 ppmv, the difference in extremes being the difference between advancing ice sheets and our current clime. In 2005 the data were analyzed back to 650,000 years and were found to be much the same — Al Gore was proud to be able to show that then-new analysis in his 2006 movie An Inconvenient Truth. Now all 800,000 years of the ice column have been analyzed, and the data show much the same pattern, according to the researcher: 'When carbon dioxide changed there was always an accompanying climate change. Over the last 200 years human activity has increased carbon dioxide to well outside the natural range' — to 380 ppmv."

Comments

Re:800,000 years of data insufficient

[prometheon123]

Well said. Just posted this: http://www.crichton-official.com/speeches/speeches _quote05.html Typically, environmentalists tend to be urban atheists, and have this rediculous romantic notion of what nature is. Nature is brutal and unpredictable.

Re:50 years from now, Gore will be considered a he

[Capt James McCarthy]

Well, if any of this data supports the theory of "humans causing global warming," shouldn't you suppose that the target should not be limited to the United States? How about developing countries that are not under any regulations? Also, trying to use intimidation methods really doesn't function IMO. Telling people that the Earth is headed towards destruction because someone drives an SUV is another method of creating a version of class warfare. I also doubt that Gore will be seen as anything other then the "Creator of the Internet."