| Summary/Abstract |
Climate advocates increasingly view state policy as a crucial tool to reduce greenhouse gas emissions in the U.S. However, the literature lacks systematic empirical analysis of which, when, and why states adopt policies mitigating climate change. While traditional climate federalism highlights the co-benefits to climate policies in driving subnational policy decisions, more recent work emphasizes the powerful role of partisan control of office. I collect and analyze panel data measuring the strength of state policy from 2007 to 2014 in four areas: renewable portfolio standards, distributed generation, energy efficiency, and severance taxes on oil and gas extraction. While renewable portfolio standards and distributed generation policies were driven primarily by Democratic partisanship in state electorates, energy efficiency policies were less responsive to Democratic partisanship but marginally responsive to unified Democratic control of state government. Finally, these political factors did not measurably influence state severance taxes.
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