I've been asked to comment on William Happer's "The Truth about Greenhouse Gases", and finding no competent discussion of it anywhere on the first three pages of hits have agreed to take it on.

To give you an idea of the tenor of the document, it starts off modestly, like this:

“The object of the Author in the following pages has been to collect the
most remarkable instances of those moral epidemics which have been
excited, sometimes by one cause and sometimes by another, and to
show how easily the masses have been led astray, and how imitative and
gregarious men are, even in their infatuations and crimes,” wrote Charles
Mackay in the preface to the first edition of his Extraordinary Popular
Delusions and the Madness of Crowds. I want to discuss a contemporary
moral epidemic: the notion that increasing atmospheric concentrations
of greenhouse gases, notably carbon dioxide, will have disastrous
consequences for mankind and for the planet. This contemporary
“climate crusade” has much in common with the medieval crusades
Mackay describes, with true believers, opportunists, cynics, money-hungry
governments, manipulators of various types, and even children’s
crusades.



Yes, Happer, who holds a named chair in physics at Princeton, is of the paranoiac school of skepticism, the one that would rather believe in a grand conspiracy than to consider for a minute the possible need for collective action on this matter.

After this blistering start, he takes some time to get warmed up. A few pages go on about how plants like CO2 and CO2 is necessary for life, so we shouldn't call it a pollutant until we start suffocating. This, before taking on the climate question, is plainly putting the cart before the horse, but it takes up a few pages. At the bottom of page four we come to the first mention of climate, and we are well into the fifth page before the famous physicist manages to construct the following argument:

The argument starts something like this. CO2 levels have increased from
about 270 ppm to 390 ppm over the past 150 years or so, and the earth
has warmed by about 0.8 C during that time. Therefore the warming is
due to CO2. But correlation is not causation. The local rooster crows every
morning at sunrise, but that does not mean the rooster caused the sun to
rise. The sun will still rise on Monday if you decide to have the rooster for
Sunday dinner.

There have been many warmings and coolings in the past when the CO2
levels did not change.



Yes, after five pages he leads with a version of the "dinosaurs had no SUVs, QED" argument!

What's more , he defends it with the "wine exported from Greenland" meme. I myself am responsible for tracking this one down to an archaeologust who showed that wine was imported into Greenland. A horse of a different color, you'll admit.

So by the time we reach page five we have four pages of waffling, a stunningly weak fallacy, and an incorrect anecdote raised in support of it. Hardly an auspicious start.

But it's all in service of a ludicrous claim. Nobody has ever said that CO2 is the ONLY influence on global climate. Still, you'd expect better from the esteemed professor.


Photo by Princeton.edu.