"Climate change is one of the most complicated issues facing society today. Varying levels of change have been observed at the continental, regional, and ocean basin scale (IPCC, 2013), yet the specific factors driving these changes are only partly understood (Schneider, 2006). The relationship between climate change and hurricane activity in the Atlantic basin is a much debated topic and it is clearly one of the uncertainties in our future climate. For example, there has been an increase in the number and intensity of major hurricanes in the Atlantic basin that began in 1995 (Goldenberg et al., 2001; Pielke et al., 2005; Webster et al., 2005). One possible explanation for this upward trend of Atlantic hurricane activity is the increase of sea surface temperature (SST) driven by greenhouse gas forcing (Elsner, 2006; Emanuel, 2005; Holland & Webster, 2007; Webster et al., 2005). In contrast, there is another possible explanation that attributes the uptick in Atlantic hurricane activity since 1995 to multi-decadal climate variability and its induced increase of sea surface temperature driven primarily by the Atlantic Multi-decadal Oscillation (AMO). AMO as an ocean current could affect the sea surface temperature and thus in turn affect the hurricane activity (Senkbeil et al., 2011). It is premature to directly link it with climate change (Landsea, 2005; Landsea et al., 2006; Pielke et al., 2005)."
Here is a Washington Post piece explaining the science behind the recent U.S. hurricane history.