An award-winning social entrepreneur and a thinker and practitioner in how to bring about transformative, systemic change. Gemma set up New Constellations to help communities and leaders imagine and create futures of human and planetary flourishing. She is a co-founder and Chair of More In Common and sits on the advisory council of Yale University's International Leadership Centre. She was previously Chief Global Officer at Change.org, the world’s largest platform for social change, and CEO of Crisis Action - an organisation that won the MacArthur and Skoll Awards for its innovative model of collective action - and Co-Chair of the World Economic Forum’s Global Council on Systems Leadership. She was a Yale World Fellow in 2015 and recognised by CNN as one of their Inspirational Women in 2014 and the World Economic Forum as one of its Young Global Leaders in 2011.