 Congratulations! By being here, alive, you are one of history's winners, a success story 4 billion years in the making. How did we get so lucky? In this short, funny talk, paleobiologist Lauren Sallan shares insights on how your ancestors' survival through mass extinction made you who you are today. Watch »  "My science fiction has different ancestors -- African ones," says writer Nnedi Okorafor. In between readings from her "Binti" series and her novel "Lagoon," Okorafor discusses the inspiration and roots of her work -- and how she opens new doors through her Afrofuturist writing. Watch » |  Could we cure climate change? Geoengineering researcher Tim Kruger wants to try. He shares one possibility: using natural gas to generate electricity in a way that takes carbon dioxide out of the air. Learn more -- both the potential and the serious risks -- about this controversial field of large-scale intervention to stop the already catastrophic consequences of our warming planet. Watch »  "We all feel a compelling need to watch stories, to tell stories ... to discuss the things that tell each one of us that we are not alone in the world," says TV titan Shonda Rhimes. A dominant force in television since "Grey's Anatomy" hit the airwaves, she discusses the future of media, how she's using her narrative-building skills as a force for good -- and an intriguing concept known as "Amish summers." Watch » | |
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