Barbara Haya, Ph.D.

Research Fellow

California Institute for Energy and Environment (CIEE)

University of California, Berkeley

bhaya at berkeley dot edu



Below is a repository of the publications associated with the Berkeley Carbon Trading Project as the web page is transitioned.



Berkeley Carbon Trading Project


The Berkeley Carbon Trading Project, headed by CIEE Research Fellow Barbara Haya, combines interdisciplinary research with policy outreach focused on the effectiveness of carbon trading programs. The project is currently focused on California’s carbon offset program, which is expected to contribute substantially to how the state will achieve its emissions targets and to offer a potential model for other new offset programs around the world.



Documents & Resources:


Fact Sheet: The Size of California’s Carbon Offset Program, last updated July 11, 2017.


Fact Sheet: California’s U.S. Forest Offset Protocol Over-credits Reductions, prepared June 6, 2017.


Comments submitted to the California Air Resources Board on the state’s draft Climate Change Scoping Plan Update – the proposed strategy for achieving California’s 2030 greenhouse gas target, Submitted Nov. 21, 2016.


Comments submitted to the California Air Resources Board on the state’s proposed REDD program and linkage with Acre, Brazil, Submitted June 4, 2016.


Carbon Offsets in California: Science in the Policy Development Process, Barbara Haya, Aaron Strong, Emily Grubert, Danny Cullenward. Book chapter in: In New Trends in Communicating Risk and Resiliency: A Multi-Disciplinary Approach to Global Environmental Change, eds. J. Eichelberger, K. Taylor & Y. Kontar. Springer. (2016).


California’s Carbon Offsets Program — the Offset Limit Explained

This slide deck visually describes California’s offsets limit, and offers the data tables in a separate tab.



Blog Posts:


AB 398’s use of excess carbon credits instead of real reductions, July 17, 2017.