William A. Pizer

About the Author

William A. Pizer is a distinguished environmental economist and policy expert whose work bridges academia, government, and international organizations to address pressing global challenges. With a PhD in economics from the University of Michigan, he has held key positions including deputy assistant secretary for climate policy at the U.S. Department of the Treasury and lead author for the Intergovernmental Panel on Climate Change (IPCC). Pizer's research focuses on the design and evaluation of environmental regulations, carbon pricing mechanisms, and the role of voluntary initiatives in sustainable development. His seminal book, Reality Check: The Nature and Performance of Voluntary Environmental Programs in the United States, Europe, and Japan, offers a rigorous comparative analysis of these programs' effectiveness across continents, informing policymakers and scholars alike on pathways to environmental stewardship.