The climate crisis is our best chance to build a better world - and the people most affected by the destruction are in the forefront of coming up with alternatives. We'd better listen to them. That's the message of a new film from this week's guest, Avi Lewis, director of the new film This Changes Everything, inspired by the bestselling book by his wife Naomi Klein. Avi Lewis co-created and hosted the award-winning Al Jazeera documentary series Fault Lines, and The Big Picture on CBC Television. His first documentary, The Take, followed Argentina’s legendary movement of worker-run businesses. Also: Laura discusses women leading the charge for change around the world.