Frances Arnold: Biological Design by Evolution

Frances Arnold's lecture at the annual Molecular Frontiers Symposium at the Royal Swedish Academy of Sciences in Stockholm, May 2012. The topic of the 2012 Symposium was "How chemical cycles shape our planet - the global challenge". Check our YouTube channel for more exciting science videos! For more information, visit www.molecularfrontiers.org Help us caption & translate this video! http://amara.org/v/FC5m/