Shefa Siegel
Lead Environment and Policy Researcher, Vale Columbia Center on Sustainable International Investment.
Last Contribution:
The Keystone Movement's Economic Moment
Contributor Biography
Shefa Siegel is lead environment & policy researcher at the Vale Columbia Center on Sustainable International Investment, a joint center of Columbia University’s law school and Earth Institute. He also writes for Haaretz Books, Sojourners, and Environment 360.







