By H. Sterling Burnett, Ph.D., Heartland Institute
In contrast to many climate scientists and writers with the mainstream media covering climate change, who in their hubris claim the science is settled, Albert Einstein expressed modesty with regard to his knowledge, reportedly saying, “The more I learn, the more I realize how much I don’t know.”
Eistein, a genius by any measure, was not the first to express such wisdom. Socrates, nearly 2,400 years ago, reputedly stated, “The only true wisdom is in knowing you know nothing,” and Aristotle expressed a similar sentiment, saying, “The only true wisdom is in knowing you know nothing.” Would that contemporary climate researchers displayed such a cautious, honest assessment of the state of knowledge in their field about the causes and consequences of contemporary climate change—but they rarely do.
Still, research comes out daily suggesting that far more remains unknown about climate change and the extent to which it drives extreme weather than is known by climate scientists and their journalist sycophants, and is assumed, and built into, climate models. Two recent studies provide examples showing this.
One recent study, published in the peer-reviewed journal Geophysical Research Letters, examines the correlations of tropical cyclone (TC) activity in the Atlantic and Pacific hurricane basins to multi-decadal variations in sea-surface temperatures tied to shifts in Atlantic Multidecadal Variability (AMV). In analyzing two sets of climate model simulations, adding and subtracting AMV anomalies, researchers found the Atlantic and Pacific respond differently to warm AMV phases, which produce warmer temperatures:
Relative to cold or negative AMV anomalies, a warm AMV:
produces much more frequent TCs (including those making landfalls) over the North Atlantic. This is because AMV+ offers favorable conditions for TC development, including warmer SSTs, higher relative humidity, increased relative vorticity, and weaker vertical wind shear. By contrast, AMV+ causes less frequent TCs across the western North Pacific and South Pacific due to unfavorable conditions for TC occurrence (stronger vertical wind shear and less moist air). The contrasts in TC environment are due to increased zonal flow between the Atlantic and Pacific basins with AMV+.
What they didn’t find to be a factor in hurricane strength or formation was long-term global climate change. Rather, climate models suggest shifts in the Atlantic Ocean current oscillations are the forcing factor for tropical cyclones, or their absence. This study lends credence to the Intergovernmental Panel on Climate Change’s (IPCC) most recent AR6 physical science report, which confirms that there is no detection or attribution of any trend for either the number or strength of tropical cyclones tied to climate change. The IPCC’s assessment suggested that even under the most extreme emission scenarios, it could find no evidence climate change had or would affect tropical cyclones through 2100. (See chart below.)
Despite the IPCC’s clear statements and the findings in this new research, I’d bet money that this year when tropical storms and hurricanes form, especially when one or the other makes landfall and causes damage, mainstream media outlets will publish stories claiming climate change is to blame, citing “studies” from bogus climate science outfits like World Weather Attribution as evidence supporting their claim.
And, of course, hurricanes are only one type of extreme weather event we are only beginning to understand, and, as a result, show how little we know about their formation and cause. Tornados are another such type of event.
Every year, some scientists and reporters in the mainstream media try to tie climate change to the frequency or strength of tornados. Climate Realism has debunked such claims on dozens of occasions, citing research demonstrating there is no trend in increasing numbers or strength of hurricanes. Now the UPI is reporting the same fact.
One recent article published by UPI noted that no EF5 tornado, “one of the most catastrophic weather events on Earth … [which can] grow to be more than a mile wide and pack winds over 200 mph—stronger than any Category 5 hurricane on record across the Atlantic basin,” has struck the United States in more than 11 years—the longest such EF5 drought since consistent records have been maintained. And this is despite billions of additional tons of carbon dioxide being emitted into the atmosphere over that 13-year period. Commenting on this blessed severe tornado drought, UPI writes:
On May 20, 2013, an extremely powerful tornado destroyed a huge part of Moore, Okla. Eleven years later, it remains the most recent tornado to be rated EF5, the strongest possible rating on the Enhanced Fujita Scale. The 11-year gap is the longest since official U.S. records began in 1950.
Before the Moore tornado, the blockbuster tornado season in 2011 led to the confirmation of five EF5 twisters, including the Joplin, Missouri, EF5 that killed 161 people. A total of 50 tornadoes have been rated F5/EF5 since records began in the United States in 1950.
Meteorologist Bob Henson said in 2023 that the current EF5 “drought” is hard to explain since damage estimates can be subjective. Damage to a “well-constructed building” is the most common factor that helps the National Weather Service (NWS) confirm an EF5, yet many homes in the U.S. do not meet that criteria.
During this busy tornado season, think back to how many stories you’ve already seen that mentioned climate change as a factor—modifying their timing, number, behavior, and power. Then, remember mainstream media column inches and broadcast air-time to the contrary, there is no evidence whatsoever that climate change has, will, or can, even in climate models, impact tornados.
Sources: No Tricks Zone; Geophysical Research Letters; UPI
H. Sterling Burnett, Ph.D. is the director of The Heartland Institute’s Robinson Center on Climate and Environmental Policy and the managing editor of Environment & Climate News.