SPPI’s authoritative Monthly CO2 Report for April 2009 reveals that:

(1) Unpredicted ocean cooling over the past five years disproves the theory that manmade “global warming” has a significant effect on the Earth’s temperature. None of the IPCC’s computer models had predicted ocean cooling. All had predicted ocean warming. They were wrong.

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(2) Rapid surface atmospheric cooling, especially in the Northern Hemisphere, has now continued for seven and a half years.

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(3) The IPCC assumes CO2 concentration will reach 836 ppmv by 2100. However, for seven years, CO2 concentration has headed straight for only 575 ppmv by 2100. This alone halves all of the IPCC’s temperature projections.

(4) Since 1980 temperature has risen at only 2.5 F (1.5 C) per century, not the 7 F (3.9 C) the IPCC imagines. For 600 million years there has been no correlation between CO2 concentration and the Earth’s temperature.

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(5) Sea level rose just 8 inches in the 20th century and has been rising at just 1 foot/century since 1993. Though James Hansen of NASA says sea level will rise 246 feet, sea level has scarcely risen since the beginning of 2006.

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(6) Sea ice extent in the Arctic is above the 30-year average, and has set a nine-year record high. In the Antarctic, sea ice extent reached a record high in 2007, and is now the third-highest in 30 years. Global sea ice extent shows little trend for 30 years.

(7) The Accumulated Cyclone Energy Index is a 2-year running monthly sum of activity in all hurricanes, typhoons and tropical cyclones. It shows that there is now less severe tropical-storm activity than at any time in 30 years.

(8) Solar activity is at a 100-year record low. We may be facing a 70-year Maunder Minimum - extreme cooling.

(9) Science Focus this month studies “data revisionism” - how scientific results are bent to promote false alarmism.

See larger image here of GISS raw versus adjusted data for Santa Rosa, one of many such examples.

Finally, check out our monthly selection of scientific papers, and meet the Top Ten “Global Warming” skeptics in the full report here.

Be sure also to see Lord Monckton respond back to Gavin Schmidt’s attacks in this SPPI post here. He begins “Yet again Gavin Schmidt, who writes the political RealClimate blog for “global-warming” alarmists that is promoted by two of the authors of the now-discredited “hockey-stick” graph falsely abolishing the medieval warm period, has inaccurately criticized me in his blog. This paper sets the facts straight. On 2 May 2009, under the title Monckton’s deliberate manipulation, Gavin Schmidt, who is paid by NASA but may not be as scientific or as impartial as a government servant ought to be, posted a blog entry that we shall publish in full, paragraph by paragraph, with our commentary in bold face.”