Dr Gabrielle Walker is an expert strategist, speaker and moderator, helping businesses to address global challenges—with a focus on sustainability, new energy and climate change. Gabrielle has presented many TV and radio programs for the BBC. She has been Climate Change Editor at Nature and Features Editor at New Scientist and has written very extensively for many international newspapers and magazines, including The Economist, Prospect, The Wall Street Journal and The New York Times. She is author of four books including co-authoring the bestselling book The Hot Topic, how to avoid global warming while still keeping the lights on.