Cato April 18, 2008
Our Climate Numbers are a Big Old Mess
The earth's paltry warming trend, 0.31 degrees Fahrenheit per decade since the mid-1970s, isn't enough to scare people into poverty. And even that 0.31 degree figure is suspect.
There have been six major revisions in the warming figures in recent years, all in the same direction.
But every climatologist must know that Greenland's last decade was no warmer than several decades in the early and mid-20th century. There's a photograph in the journal Arctic, published in 1953 by R.H. Katz, captioned "River disappearing in 40-foot deep gorge," on Greenland's Adolf Hoels Glacier. It's all there in the open literature, but apparently that's too inconvenient to bring up. Greenland didn't shed its ice then. There was no acceleration of the rise in sea level.