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Climate change to shift tropical rains northward, suggests computer modeling


A study led by a UC Riverside atmospheric scientist predicts that unchecked carbon emissions will force tropical rains to shift northward in the coming ...

A study led by a UC Riverside atmospheric scientist predicts that unchecked carbon emissions will force tropical rains to shift northward in the coming decades, which would profoundly impact agriculture and economies near the Earth's equator. However, the northward shift will last for only about 20 years before greater forces stemming from warming southern oceans pull the convergence zones back southward and keep them there for another millennium, said Wei Liu, an associate professor of climate change and sustainability at UCR's College of Natural and Agricultural Sciences. Intertropical convergence zones are areas along or near the equator where trade winds from the northern and southern hemispheres meet and shoot upward into the cooler elevations, sucking up great volumes of moisture from the oceans.

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