This dissertation examines the history of ethanol policymaking and the growth of a global ethanol production network, a cornerstone of the emerging low-carbon, bio-based economy. In this way, the study also provides insights into the nature of economic and environmental governance of this bio-based economy, analyzing the effects at multiple jurisdictional levels. I conducted research in Brazil and the United States, the two countries responsible for the vast majority of global ethanol production. The dissertation draws on data collected using qualitative methods including document analysis, interviews conducted in English and Portuguese, and multi-sited ethnographic investigation at nodes along ethanol commodity chains. The dissertation is ...