Beyond Zero speaks with Peter Kalmus part 1

This is part 1 of a two part show.Peter Kalmus is a NASA scientist ans climate activist who has achieved amazing things in the climate space in a short space of time.Not only is he an American climate scientist, astrophysicist, writer, and climate activist he has co authored the award winning book, "Being the Change: Live Well and Spark a Climate Revolution", founded the website noflyclimatesci.org and co-founded the app Earth Hero: Climate Change. As well he has started the ClimateAd project to raise awareness about climate change.