After a brief respite to digest the "climategate" scandal and the IPCC's negligent acceptance of fraudulent claims about melting Himalayan glaciers, the SDN echo chamber of environmental propaganda has resumed in full form with the Peters-deBuys article of July 17. Such activists are trumpeting the recent spring increase of 0.1 C in average temperature while they completely ignored the previous decade decrease of 0.25 C. The environmental propagandists are now back on message with their talking points in preparation for the Senate's consideration of an energy bill. The article is right about one thing: namely, that you should look at the data yourself; but not the eco-massaged data they recommend but rather the raw data as summarized in www.climate4you then click on May 2010.
The data show nothing particularly dramatic for the last several decades: temperatures, polar ice coverage, and sea level fluctuations that are all well within the range of normal variability. For more details, see my recent Cafe Scientifique talk on www.youtube.com and enter "climategate" and "hertzberg" in the search box. The data show that average Earth temperatures do not correlate with the recent increases in atmospheric CO2 concentrations, and that neither of those quantities correlate in any way with the human emission of CO2 by fossil fuel combustion. The entire theory that "greenhouse gases" in the atmosphere can reradiate energy back to the Earth and thus cause more heating, has been proven to violate the laws of thermodynamics, and thus to be completely devoid of physical reality. Acceptance of that theory by some journals, scientific organizations, and government agencies both national and international, represents scientific malfeasance on a grand scale.