The Curious Case of Greening in Carbon Markets

23 Pages Posted: 16 Mar 2011

See all articles by William Boyd

William Boyd

University of Colorado Law School

James E. Salzman

University of California, Santa Barbara (UCSB) - Donald Bren School of Environmental Science & Management; University of California, Los Angeles (UCLA) - School of Law

Date Written: March 11, 2011

Abstract

Over the last several years, so-called carbon markets have emerged around the world to facilitate trading in greenhouse gas credits. This Article takes a close look at an unexpected and unprecedented development in some of these markets - premium "green" currencies have emerged and, in some cases, displaced standard compliance currencies. Past experiences with other environmental compliance markets, such as the sulfur dioxide and wetlands mitigation markets, suggest the exact opposite should be occurring. Indeed, buyers in such markets should only be interested in buying compliance, not in the underlying environmental integrity of the compliance unit. In some of the compliance carbon markets, however, higher quality green credits have emerged in recent years as important currencies for a number of buyers, representing a dynamic that we refer to as "Gresham’s Law in reverse" - more stringent currencies arising alongside and even displacing inferior currencies. This Article provides the first recognition and analysis of green differentiation in carbon markets. We explore a range of explanations for this curious development. We then identify potential lessons for the design and evolution of future carbon markets and, more generally, environmental compliance markets.

Keywords: environmental law, environmental compliance markets, climate change, carbon markets, Gresham's law

JEL Classification: A14, K32, Q23

Suggested Citation

Boyd, William and Salzman, James E., The Curious Case of Greening in Carbon Markets (March 11, 2011). Environmental Law, Vol. 41, No. 73, 2011. Available at SSRN: https://ssrn.com/abstract=1783748

William Boyd (Contact Author)

University of Colorado Law School ( email )

401 UCB
Boulder, CO 80309
United States

James E. Salzman

University of California, Santa Barbara (UCSB) - Donald Bren School of Environmental Science & Management ( email )

4670 Physical Sciences North
Santa Barbara, CA 93106-5131
United States

University of California, Los Angeles (UCLA) - School of Law ( email )

385 Charles E. Young Dr. East
Room 1242
Los Angeles, CA 90095-1476
United States

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