IB: Less or more hurricanes through climate change?

Fascinating article today about hurricanes. It has generally been thought that there will be more hurricanes due to climate change since warmer seas and oceans create the conditions required by cyclones and hurricanes. However a report from National Oceanic and Atmospheric Administration's (Noaa) Geophysical Fluid Dynamics Laboratory (GFDL) in America have stated that there will be fewer storms in the future although they will be more powerful. This organisation has conducted a study before hich showed that there would be a 4% increase in storm intensity for every 1C increase in sea surface temperature. This new report suggests only a 1-2% increase though. The future still looks bleak for natural disasters though.