Leo Horn-Phathanothai is an accomplished leader in sustainable development. He has played an influential part in shaping international sustainability policies, norms, and standards over two decades in the public and private sectors, including in China, the US, UK, Brazil, Mexico, and Africa. Most recently he’d worked as a Director at the World Resources Institute (WRI), and played an instrumental role in the organization’s rapid growth from 300 to >2,700 experts, expanding its global reach and impact to over 60 countries. Before that Leo worked as a sustainability expert at the United Nations, the World Bank, and in the UK Government. Leo recently moved to Bangkok where he is working with Chinese, regional, and international actors to accelerate investment, innovation, and policy change in the region.