dianavan,

"Max Mayfield, director of the National Hurricane Center in Miami, told a Senate subcommittee on Tuesday that we're in a period of heightened hurricane activity that could last another decade or two.( See scientists collect data -- 1:33)

"The increased activity since 1995 is due to natural fluctuations (and) cycles of hurricane activity driven by the Atlantic Ocean itself along with the atmosphere above it and not enhanced substantially by global warming," he testified.

Mayfield's colleague at the National Hurricane Center, meteorologist Chris Landsea, said two recent studies about global warming and hurricanes raise more questions than they answer. He added that the impact of global warming is "minimal for the forseeable future."

Landsea said the studies indicate global warming could increase hurricane wind speeds and rainfall by about 5 percent --100 years from now. But, he added, more study is needed, looking back at historical data and making it more compatible with modern reporting techniques."

http://www.cnn.com/2005/TECH/science/09/23/hurricane.cycle/index.html