Archives par mot-clé : Storms

Global Warming and Hurricanes – NOAA says no measurable effect yet

by Anthony  Watts, April 5, 2017

From NOAA’s Geophysical Fluid Dynamics Laboratory, March  17, 2017

Two frequently asked questions on global warming and hurricanes are the following:

Have humans already caused a detectable increase in Atlantic hurricane activity or global tropical cyclone activity?
What changes in hurricane activity are expected for the late 21st century, given the pronounced global warming scenarios from current IPCC models?

A Twenty-Six Decade Record of Atlantic Hurricanes

R. Garibaldi et al., 2016

Journal of Atmospheric and Solar-Terrestrial Physics, 148, 48-52

As for the potential cause behind the downward trend, Rojo-Garibaldi et al. examined the possibility of a solar influence, performing a series of additional statistical analyses (spectral, wavelet and coherence wavelet transform) on the hurricane database, as well as a sunspot database obtained from the Solar Influences Data Analysis Center of the Solar Physics Department of the Royal Observatory of Belgium. Therein, their exploratory analyses revealed that “this decline is related to an increase in sunspot activity.”