Hannah Ritchie challenges us to be optimistic about the future of the planet

Also this week, the rise of "dopamine culture" and a Roaring Twenties mansion in the heart of Vancouver.

Hannah Ritchie (Photo by Ryan Lash, TED)

Hannah Ritchie is one of the most interesting voices in the global discussion about climate change. The University of Oxford data scientist, author of Not The End of The World: How We Can Be the first Generation to Build a Sustainable Planet, argues that we should not allow troubling statistics about global w…