Al Gore starts his odyssey on global warming with the Keeling Curve - the chart of steadily increasing CO2 levels measured off the top of Mauna Loa. Very compelling and the cornerstone of the case for anthropogenic (man-made) global warming (AGW). Early this year, however, the annual rate of increase was the lowest measured, and on a monthly basis seemed to be coming to a dead stop - which means after seasonal adjustments would show a down trend. Now it appears there is a down trend in the CO2 levels. See chart. If this continues it spells the coup de grace for the goofy AGW case.
UPDATE 7/23: Lindzen has issued his analysis in a note, reported by WattsUpWithThat.
Positive feedback is another reason why the AGW theory is goofy. We have had periods of much higher CO2 in the atmosphere than now, and not turned in a hothouse like Venus. Some natural process limits the greenhouse effect. These IPCC models need to assume a runaway feedback in order to take the minute increase in CO2 and make it cause warming.
For any given area on the ocean’s surface, the upper 2.6m of water has the same heat capacity as the entire atmosphere above it!
Ocean heat touches on the very core of the AGW hypothesis: When all is said and done, if the climate system is not accumulating heat, the hypothesis is invalid.
Writing in 2005, Hansen, Willis, Schmidt et al. suggested that GISS model projections had been verified by a solid decade of increasing ocean heat (1993 to 2003). This was regarded as further confirmation the IPCC’s AGW hypothesis. Their expectation was that the earth’s climate system would continue accumulating heat more or less monotonically. Now that heat accumulation has stopped (and perhaps even reversed), the tables have turned. The same criteria used to support their hypothesis, is now being used to falsify it.
It is evident that the AGW hypothesis, as it now stands, is either false or fundamentally inadequate.
Could it all be as simple as, something was warming the planet other than CO2, and as the ocean surface warmed, the oceans outgassd CO2? This explains why CO2 lags warming. And now, something is cooling the planet off, and CO2 is being re-absorbed into the oceans?
The solubility of CO2 in sea water is well established. Warmer waters dissolve less CO2. In fact, as the oceans warm they outgas CO2 to the atmosphere.
"Since the beginning of 2003, RSS has been dropping at 3.60C/century, UAH has been dropping at 2.84C/century, and GISS has been dropping at 0.96C/century. "