“Preliminary indications are that it is indeed due to inter-hemispheric teleconnections,”
Sorry. Not buying it.
http://www.annualreviews.org/doi/abs/10.1146/annurev-earth-042711-105545
ABSTRACT
Extratropical Cooling, Interhemispheric Thermal Gradients, and Tropical Climate Change
“Recent studies suggest the existence of a global atmospheric teleconnection of extratropical cooling to the tropical rainfall climate, mediated through the development of a thermal contrast between the hemispheres—an interhemispheric thermal gradient. This teleconnection has been largely motivated by studies that show a global synchronization of rapid climate change during abrupt climate changes of the last glacial period, in addition to attribution studies of twentieth-century Sahel drought and studies that examined the climate impacts of anthropogenic aerosols. This research has led to interesting developments in atmospheric dynamics of the underlying mechanisms and in applications toward understanding past and present tropical climate change. The emerging teleconnection hypothesis promises to offer new insights into understanding future patterns of tropical rainfall changes due to inter-hemispheric thermal gradients from greenhouse warming, aerosols, and land-use change.”
When did each hemisphere get the ability to make phone calls to one another?
It’s still man’s fault whatever the strangeness in the NLCs!