13.7: Cosmos And Culture13.7: Cosmos And Culture

Commentary On Science And Society

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Women's 200 meters respective silver and bronze medal winners from India Dutee Chand, left, and Asha Roy wave to the crowd after their race on the final day of the 2013 Asian Athletics Championship. Manjunath Kiran/AFP/Getty Images hide caption

itoggle caption Manjunath Kiran/AFP/Getty Images

A view of Seattle from the Bullitt Center. Brad Kahn/Flickr hide caption

itoggle caption Brad Kahn/Flickr

It has been a full century since the engine driving climate change was first discovered. It's been more than a half-century since the risks entered the realm of public policy. David McNew/Getty Images hide caption

itoggle caption David McNew/Getty Images