Try telling that to Bob Brown, or Tim Flannery or any of the countless other alarmists who have no concept of geological time, or even recent weather history. All you need to do is search the news archive to find countless stories of terrible disasters well before man’s emissions of carbon dioxide could possibly have had any effect.
But instead, whenever we suffer extreme weather, the Chicken Littles rush to blame “man-made global warming” because they cannot think of anything else, and they have a political agenda to advance by whatever means possible. We saw it with the Queensland floods, and Cyclone Yasi, the Big Dry and the Victorian bushfires, and we will no doubt continue to see it for every extreme weather event in the foreseeable future.
But unfortunately, a recent study shows no evidence of increasing severe or extreme weather, as the Wall Street Journal reports:
Last week a severe storm froze Dallas under a sheet of ice, just in time to disrupt the plans of the tens of thousands of (American) football fans descending on the city for the Super Bowl. On the other side of the globe, Cyclone Yasi slammed northeastern Australia, destroying homes and crops and displacing hundreds of thousands of people.
Some climate alarmists would have us believe that these storms are yet another baleful consequence of man-made CO2 emissions. In addition to the latest weather events, they also point to recent cyclones in Burma, last winter’s fatal chills in Nepal and Bangladesh, December’s blizzards in Britain, and every other drought, typhoon and unseasonable heat wave around the world.
But is it true? To answer that question, you need to understand whether recent weather trends are extreme by historical standards. The Twentieth Century Reanalysis Project is the latest attempt to find out, using super-computers to generate a dataset of global atmospheric circulation from 1871 to the present.
As it happens, the project’s initial findings, published last month, show no evidence of an intensifying weather trend. “In the climate models, the extremes get more extreme as we move into a doubled CO2 world in 100 years,” atmospheric scientist Gilbert Compo, one of the researchers on the project, tells me from his office at the University of Colorado, Boulder. “So we were surprised that none of the three major indices of climate variability that we used show a trend of increased circulation going back to 1871.”
In other words, researchers have yet to find evidence of more-extreme weather patterns over the period, contrary to what the models predict. “There’s no data-driven answer yet to the question of how human activity has affected extreme weather,” adds Roger Pielke Jr., another University of Colorado climate researcher. (source)
And the conclusion makes even more sense: “prosperity and preparedness help”. In other words, we must have strong economies in order to adapt to the inevitable climate changes that will affect humanity in the future, not economies that are fatally crippled by pointless emissions reduction taxes.
(h/t Peter C)