MÁS SOBRE LA FALACIA de que huracanes como el Katrina tienen que ver con el calentamiento global (ver post anterior), en EU Rota, con datos y gráficos. También en el New York Times:

Because hurricanes form over warm ocean water, it is easy to assume that the recent rise in their number and ferocity is because of global warming.

But that is not the case, scientists say. Instead, the severity of hurricane seasons changes with cycles of temperatures of several decades in the Atlantic Ocean. The recent onslaught "is very much natural," said William M. Gray, a professor of atmospheric science at Colorado State University who issues forecasts for the hurricane season.

From 1970 to 1994, the Atlantic was relatively quiet, with no more than three major hurricanes in any year and none at all in three of those years. Cooler water in the North Atlantic strengthened wind shear, which tends to tear storms apart before they turn into hurricanes.

In 1995, hurricane patterns reverted to the active mode of the 1950's and 60's. From 1995 to 2003, 32 major hurricanes, with sustained winds of 111 miles per hour or greater, stormed across the Atlantic. It was chance, Dr. Gray said, that only three of them struck the United States at full strength.