The Fisking of Al Gore

Via Heliogenic Climate Change, comes a fisking like no other. Patrick J. Michaels, “a senior fellow in environmental studies at the Cato Institute and an active member of the United Nations’ Intergovernmental Panel on Climate Change,” takes Al Gore apart in this latest National Review Online article.

Here’s an excerpt:

Here’s how Gore works. He’ll cite one scientific finding that shows what he wants, and then ignore other work that provides important context. Here’s a list of his climate exaggerations from his well-publicized July 17 rant, along with a few sobering facts.

Gore: “Scientists . . . have warned that there is now a 75 percent chance that within five years the entire [North Polar] ice cap will completely disappear during the summer months.”

Fact: The Arctic Ocean was much warmer than it is now for several millennia after the end of the last ice age. We know this because there are trees buried in the tundra along what is now the arctic shore. Those trees can be dated using standard analytical techniques that have been around for decades. According to Glen MacDonald of UCLA, the trees show that July temperatures could have been 5-13°F warmer from 9,000 to about 3,000 years ago than they were in the mid-20th century. The arctic ice cap had to have disappeared in most summers, and yet the polar bear survived!

Gore: “Our weather sure is getting strange, isn’t it? There seem to be more tornadoes than in living memory. . . .”

Fact: The reason there “seems” to be more tornadoes is because of national coverage by Doppler radar, which can detect storms that were previously missed (not to mention that every backyard tornado winds up on YouTube nowadays). Naturally, the additions are weak ones that might, if lucky, tip over a cow. If there were a true increase in tornadoes, then we would see a definite upswing in severe ones, too. If anything, the historical record indicates a slight negative trend in the frequency of major tornadoes, based upon death statistics.

Gore: “ . . . longer droughts . . . ”

Hogwash. The U.S. drought history, given by the Palmer Drought Severity Index, is readily available and extends back to 1895. There’s not a shred of evidence for “longer droughts” in recent decades. The longest ones were in the 1930s and 1950s, decades before “global warming” became “the climate crisis.”

Gore: “ . . . bigger downpours and record floods . . . ”

It’s true, U.S. annual rainfall has increased about 10 percent (three inches) in the last 100 years. But it’s equally true that this is a net benefit. Temperatures haven’t warmed nearly enough to increase the annual surface evaporation by the same amount, so what has resulted is a wetter country during the growing season. Farmers love this, because most of the nation runs a moisture deficit during the hot summer growing season. Increasing rain cuts that deficit.

Check out the full article here.