Atlantic Trade wind weaker stronger 4. Sahel rainfall wetter drier 5. Atlantic major hurricane acitvity higher lower 6. Idealized diagram showing how the natural alteration of North Atlantic salinity can lead to changes in a variety of atmosphere-ocean conditions. The global atmosphere and ocean appear to be well linked on multi-decadal time scales.
Evidence indicates that they change in unison.
There has yet to be an appearing physical theory for multi-decadal climate change which can withstand observational scrutiny. Atlantic salinity variation appears to offer a physically consistent forcing mechanism which appears to have a good physical and a good observational basis. Figure 6 proposed a method of how this circulation may be inferred. Because there are no direct measures of thermohaline strength, it is suggested on the bottom diagram of Figure 6 that changes in the parameters which the thermohaline circulation influences be used to estimate its strength. Illustration of how multi-decadal changes in the Atlantic thermohaline circulation are hypothesized to feed out to cause changes in African rainfall, Atlantic hurricanes, etc.