5 TED Talks That Will Make You Actually Care About Earth Day

The annual TED conference is a bastion of original thinking, its speakers on an edge so cutting they could draw blood. Over at Brain Pickings, they've got a roundup of five of the most environmentally important TED talks of the last several years; including this revolutionary one by cradle-to-cradle design guru William McDonough. [BrainPickings]

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