The surprisingly inexpensive cost of state-driven emission control strategies

Wei Peng, Gokul Iyer, Matthew Binsted, Jennifer Marlon, Leon Clarke, James A. Edmonds, David G. Victor

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Traditionally, analysis of the costs of cutting greenhouse gas emissions has assumed that governments would implement idealized, optimal policies such as uniform economy-wide carbon taxes. Yet actual policies in the real world, especially in large federal governments, are often highly heterogeneous and vary in political support and administrative capabilities within a country. While the benefits of heterogeneous action have been discussed widely for experimentation and leadership, little is known about its costs. Focusing on the United States, we represent plausible variation (by more than a factor of 3) in the stringency of state-led climate policy in a process-based integrated assessment model (GCAM-USA). For a wide array of national decarbonization targets, we find that the nationwide cost from heterogeneous subnational policies is only one-tenth higher than nationally uniform policies. Such results hinge on two critical technologies (advanced biofuels and electricity) for which inter-state trade ameliorates the economic efficiencies that might arise with heterogeneous action.

Original languageEnglish (US)
Pages (from-to)738-745
Number of pages8
JournalNature Climate Change
Issue number9
StatePublished - Sep 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Environmental Science (miscellaneous)
  • Social Sciences (miscellaneous)


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