Mayer Hillman is senior fellow emeritus at the Policy Studies Institute in London, where he formerly served as Environment and Quality of Life Research Program head. He completed his doctorate at the University of Edinburgh and was one of the first proponents of personal carbon rationing as the way for the world's population to prevent serious damange from climate change.
Tina Fawcett is a senior researcher at the Environmental Change Institute, University of Oxford, with a specialization in personal energy use and climate change. She recently completed her doctorate at University College London on household energy use, carbon emissions, and personal carbon allowances.
Sudhir Chella Rajan is a senior fellow at the Tellus Institute in Boston, where he leads the Global Politics and Institutions Program. He obtained his doctorate in Environmental Science and Engineering at the University of California, Los Angeles.