Read here. The IPCC Climategate "scientists" and the likes of Al Gore have long predicted that cyclone activity (hurricanes, tropical storms, etc.) would increase in frequency from global warming. This highly acclaimed prediction has been a spectacular failure and embarrassment to alarmists though, as the latest research reveals.
Dr. Ryan Maue's peer reviewed study confirms what objective scientists have been stating: recent cyclonic activity is at its lowest level, not its highest, in spite of CO2-induced warming.
"The U.S. researcher reports that "in the pentad since 2006, Northern Hemisphere and global tropical cyclone ACE has decreased dramatically to the lowest levels since the late 1970s," and he also finds that "the global frequency of tropical cyclones has reached a historical low." Some details of note include the fact that "a total of 69 TCs were counted during calendar year 2010, the fewest observed in the past 40 years with reliable frequency data," as well as the fact that over that same four-decade period, "12-month running-sums of the number of global TCs of at least tropical storm force has averaged 87," while "the minimum number of 64 TCs was recently tallied through May 2011."...""there is no significant linear trend in the frequency of global TCs," in agreement with the analysis of Wang et al. (2010), plus the fact that the earth is experiencing "this current period of record inactivity,"" [Ryan N. Maue 2011: Geophysical Research Letters]