Estimating environmental co-benefits of U.S. low-carbon pathways using an integrated assessment model with state-level resolution

Yang Ou, Wenjing Shi, Steven J. Smith, Catherine M. Ledna, J. Jason West, Christopher G. Nolte and Daniel H. Loughlin

Applied Energy, 2018, vol. 216, issue C, 482-493

Abstract: There are many technological pathways that can lead to reduced carbon dioxide emissions. However, these pathways can have substantially different impacts on other environmental endpoints, such as air quality and energy-related water demand. This study uses an integrated assessment model with state-level resolution of the energy system to compare environmental impacts of alternative low-carbon pathways for the United States. One set of pathways emphasizes nuclear energy and carbon capture and storage, while another set emphasizes renewable energy, including wind, solar, geothermal power, and bioenergy. These are compared with pathways in which all technologies are available. Air pollutant emissions, mortality costs attributable to particulate matter smaller than 2.5 µm in diameter, and energy-related water demands are evaluated for 50% and 80% carbon dioxide reduction targets in 2050. The renewable low-carbon pathways require less water withdrawal and consumption than the nuclear and carbon capture pathways. However, the renewable low-carbon pathways modeled in this study produce higher particulate matter-related mortality costs due to greater use of biomass in residential heating. Environmental co-benefits differ among states because of factors such as existing technology stock, resource availability, and environmental and energy policies.

Keywords: Integrated assessment modeling; GCAM-USA; Air pollution health impacts; Energy-related water demand (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (14)

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DOI: 10.1016/j.apenergy.2018.02.122

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