Five U.S. Patent and Trade Office patent applications, made public on July 9, propose slowing hurricanes by pumping cold, deep-ocean water in their paths from barges. If issued, the patents offer 18 years of legal rights to the idea for Gates and co-inventors, including climate scientist Ken Caldeira of the Carnegie Institution of Washington.

http://www.usatoday.com/tech/science/2009-...urricanes_N.htm

i don't know, sounds good in theory, but to mess with ocean currents....now that could be catastrophic.