As delegates meet this week to discuss the Kyoto Protocol, it's not clear if Russia will ratify the climate treaty. In this hour, we'll talk about the current state of climate change science. Are policymakers listening?
President of the Pew Center on Global Climate Change
Director of the National Climatic Data Center at the National Oceanic and Atmospheric Administration
Senior scientist and head of the Climate Analysis Section at the National Center for Atmospheric Research
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