A paper published today in The Journal of Climate examines tropical cyclone activity over the western North Pacific from 1960-2011 and finds “overall tropical cyclone activity shows a significant decrease” during the “recent inactive period” from 1998 to 2011. The paper adds to several others finding, contrary to the claims of climate alarmists, that global warming is correlated with a decrease in cyclone activity and decreased “extreme weather.”
Kin Sik Liu and Johnny C. L. Chan*
Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong
Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 1960-2011, with two distinct active and inactive periods each. This study examines changes in TC activity and atmospheric conditions in the recent inactive period (1998-2011). The overall TC activity shows a significant decrease, which is partly related to the decadal variation of TC genesis frequency in the southeastern part of the WNP and the downward trend of TC genesis frequency in the main development region.