Friday, August 10, 2007


Hurricanes and Hot Air
Though the 2007 hurricane season is off to a slow start, my colleague Phil Klotzbach and I will be updating our seasonal Atlantic Basin Hurricane Activity Forecast on Aug 3. We still anticipate another active season -- an above-average number of major hurricanes with maximum sustained winds in excess of 110 mph....

...A number of my colleagues and I have discussed the physics of Atlantic THC variations in our seasonal hurricane forecasts and in various conference talks for many years. Those who are convinced that greenhouse gas increases provide the only plausible explanation for the recent increases in hurricane activity are either unaware of our work, or don't want to consider any alternative.

One reason may be that the advocates of warming tend to be climate modelers with little observational experience. Many of the modelers are not fully aware of how the real atmosphere and ocean function. They rely more on theory than on observation.

The warming theorists -- most of whom, no doubt, earnestly believe that human activity has triggered nature's wrath -- have the ears of the news media. But there is another plausible explanation, supported by decades of physical observation. The spate of recent destructive hurricanes may have little or nothing to do with greenhouse gases and climate change, and everything to do with the Atlantic Ocean's currents.