One of the great challenges ahead in climate modeling is to extend the results of global climate models to make predictions about what will happen at the regional or local level. Where will there be more extreme weather? What areas will experience more rainfall and where will there be extensive droughts? How will the addition of cold fresh water to the oceans change the ocean's circulation pattern? These changes are coming because of the anthropogenic forcings we have already added to the climate system. It yet remains for public policy and mitigation efforts to catch up with and support the scientists who study global climate.
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