John Marshall is the founder and Executive Chair of Potential Energy Coalition, a nonpartisan, nonprofit marketing firm whose mission is to dramatically increase public support for action on climate change. John is a marketing expert with more than 30 years of experience advising the leaders of Fortune 500 companies on branding, marketing, innovation and corporate strategy. Prior to founding Potential Energy, John served as the chief strategy and innovation officer at Lippincott, global head of strategy and analytics at the digital agency Digitas, president of the public education company The Princeton Review and partner with the consulting firm Oliver Wyman.