In other posts, I have discussed the 800-year lag between temperature and CO2 in the ice core histories. For those not aware of the issue, ice core data, like that shown by Al Gore in An Inconvinient Truth, initially showed a very strong and compelling correlation between CO2 and temperature. Not only did CO2 look like a driver of climate, it looked like the driver. But Gore is very careful how he presents this chart in his movie (one of his Really Big Charts). The reason is that by the time of the movie, better instrumentation and lab procedure had shown that temperature increases in the ice core data actually preceeded CO2 increases by 800 or more years. CO2 was being increased by heating of the oceans and outgassing of CO2 from them, not the other way around.
The Science and Public Policy Institute has found a pretty glaring fabrication in Laurie David’s global warming propoganda book for kids. The book shows kids this graph:
Pretty compelling. Every 75,000 years or so there is a CO2 spike, followed by a temperature spike. But the SPPI folks found something interesting by going back to the original source: Laurie David has reversed the legend. They have called the red line CO2, when in fact it is temperature, and vice versa, reversing the causality back the way she apparently wants it.
SPPI goes back to David’s source just to make sure, and yes, the original study behind the chart confirms that temeprature rises before CO2.
On page 103 of their book, David and Gordon cite the work of Siegenthaler et al. (2005), for their written and graphical contention that temperature lags CO2. However, Siegenthaler et al. clearly state the opposite:
“The lags of CO2 with respect to the Antarctic temperature over glacial terminations V to VII are 800, 1600, and 2800 years, respectively, which are consistent with earlier observations during the last four glacial cycles.”
(Siegenthaler et al., 2005, Science, vol. 310, 1313-1317)
Oops. Are lies OK if they are "for the children?"