"The most influential climate activist of our era, Bill McKibben, a founder of the extraordinarily effective 350.org grassroots campaign, describes the immense groundswell of global citizen engagement rising to challenge the "dirty" energy industry. Find out where we are scientifically and politically in the transformation to end our reliance on fossil fuels, while lighting the pathways toward a clean-energy future." Introduction by Clayton Thoma-Muller, 350.org Bill will be one of the keynote … Watch video