CSIRO finds aerosols affect weather
The CSIRO has discovered the rise of pollution in the atmosphere is forcing a change in ocean circulation in the Southern Hemisphere, in turn affecting our region’s weather systems. A report by Dr Wenju Cai said aerosols cool the Northern Hemisphere’s ocean surface and induce a hemispheric imbalance. This causes an increase in the transport of heat from the Southern Hemisphere oceans to the Northern Hemisphere oceans via the south Atlantic. “For the first time, we see that human-generated aerosols are partly responsible for intensifying features such as larger ocean gyres, causing them to shift southward. They also cause the southward movement of maximum sea surface temperature gradients, mid-latitude storms and the westerly jet stream,” said Dr Cai.
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