Why is good news so rare? In a special broadcast from the TED stage, journalist Angus Hervey sheds light on some of the incredible progress humanity has made across environmental protection, public health and more in the last year, making the case that if we want to change the story of humanity this century, we have to start changing the stories we tell ourselves. "When we only tell the stories of doom, we fail to see the stories of possibility," says Hervey.