As for the anonymous scientists' unspecified claims about the column's supposedly myriad inaccuracies: The column contained many factual assertions but only one has been challenged. The challenge is mistaken.
Citing data from the University of Illinois' Arctic Climate Research Center, as interpreted on Jan. 1 by Daily Tech, a technology and science news blog, the column said that since September "the increase in sea ice has been the fastest change, either up or down, since 1979, when satellite record-keeping began." According to the center, global sea ice levels at the end of 2008 were "near or slightly lower than" those of 1979. The center generally does not make its statistics available, but in a Jan. 12 statement the center confirmed that global sea ice levels were within a difference of less than 3 percent of the 1980 level.
So the column accurately reported what the center had reported. But on Feb. 15, the Sunday the column appeared, the center, then receiving many e-mail inquiries, issued a statement saying "we do not know where George Will is getting his information." The answer was: From the center, via Daily Tech. Consult the center's Web site where, on Jan. 12, the center posted the confirmation of the data that this column subsequently reported accurately.
The scientists at the Illinois center offer their statistics with responsible caveats germane to margins of error in measurements and precise seasonal comparisons of year-on-year estimates of global sea ice. Nowadays, however, scientists often find themselves enveloped in furies triggered by any expression of skepticism about the global warming consensus (which will prevail until a diametrically different consensus comes along; see the 1970s) in the media-environmental complex. Concerning which:
On Feb. 18 the U.S. National Snow and Ice Data Center reported that from early January until the middle of this month, a defective performance by satellite monitors that measure sea ice caused an underestimation of the extent of Arctic sea ice by 193,000 square miles, which is approximately the size of California. The Times ("All the news that's fit to print"), which as of this writing had not printed that story, should unleash Revkin and his unnamed experts.