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This year, the Intergovernmental Panel on Climate Change (IPCC) is issuing a series of reports about the state of global warming. This Bio Bulletin highlights the impacts of global warming noted in the second report, such as animal range shifts and an increased likelihood of severe heat waves. Humans may be able to mitigate the impact of global warming by dramatically reducing the amount of greenhouse gases we generate. See the related links to find ways to reduce your own emissions.