Sivan Kartha is a Senior Scientist at the Stockholm Environment Institute and co-leader of the institute-wide research theme Reducing Climate Risk. His research and publications for the past twenty years have focused on technological options and policy strategies for addressing climate change. His work has enabled him to advise and collaborate with diverse organizations, including the Secretariat of the United Nations Framework Convention on Climate Change (UNFCCC), various UN and World Bank programs, numerous government policy-making bodies and agencies, foundations, and civil society organizations throughout the developing and industrialized world. He is an author on the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (Working Group III), co-leading the chapter on Sustainable Development and Equity. He received his PhD in theoretical physics from Cornell University in 1993.