Michael Brune is executive director of the Sierra Club, America’s largest grassroots environmental organization. He was previously Executive Director at, Rainforest Action Network, which – under his leadership – has won more than a dozen key environmental commitments from America’s largest corporations. He is the author of Coming Clean — Breaking America’s Addiction to Oil and Coal, which details a plan for a new green economy that will create well-paying jobs, promote environmental justice and bolster national security.