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James Hansen: Why I Must Speak Out About Climate Change

Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply worried about the future.


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Religion, Evolution and Self Ascendency: Why Good People are Divided by Politics and Religion

Psychologist Jonathan Haidt asks a simple, but difficult question: why do we search for self-transcendence? Why do we attempt to lose ourselves? In a tour through the science of evolution by group selection, he proposes a provocative answer.

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Underwater Astonishments

David Gallo shows jaw-dropping footage of amazing sea creatures, including a color-shifting cuttlefish, a perfectly camouflaged octopus, and a Times Square's worth of neon light displays from fish who live in the blackest depths of the ocean.

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Frans de Waal: Moral Behavior in Animals

Empathy, cooperation, fairness and reciprocity -- caring about the well-being of others seems like a very human trait. But Frans de Waal shares some surprising videos of behavioral tests, on primates and other mammals, that show how many of these moral traits all of us share.

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Einstein the Parrot: Talking and Squawking

This whimsical wrap-up of TED2006 -- presented by Einstein, the African grey parrot, and her trainer, Stephanie White -- simply tickles. Watch for Einstein's moment with Al Gore.

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Roderick Romero - Treehouse Builder

Roderick has been featured for his fantastic skills on Treehouse Master, and is personally responsible for many of the worlds greatest treehouses. This interview took place around January 15th, 2015.

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