Bio-energy and CO2 emission reductions: an integrated land-use and energy sector perspective

Nico Bauer (), David Klein, Florian Humpenöder, Elmar Kriegler, Gunnar Luderer, Alexander Popp and Jessica Strefler
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Nico Bauer: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
David Klein: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
Florian Humpenöder: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
Elmar Kriegler: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
Gunnar Luderer: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
Alexander Popp: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association
Jessica Strefler: Potsdam Institute for Climate Impact Research, Member of the Leibniz Association

Climatic Change, 2020, vol. 163, issue 3, No 30, 1675-1693

Abstract: Abstract Biomass feedstocks can be used to substitute fossil fuels and effectively remove carbon from the atmosphere to offset residual CO2 emissions from fossil fuel combustion and other sectors. Both features make biomass valuable for climate change mitigation; therefore, CO2 emission mitigation leads to complex and dynamic interactions between the energy and the land-use sector via emission pricing policies and bioenergy markets. Projected bioenergy deployment depends on climate target stringency as well as assumptions about context variables such as technology development, energy and land markets as well as policies. This study investigates the intra- and intersectorial effects on physical quantities and prices by coupling models of the energy (REMIND) and land-use sector (MAgPIE) using an iterative soft-link approach. The model framework is used to investigate variations of a broad set of context variables, including the harmonized variations on bioenergy technologies of the 33rd model comparison study of the Stanford Energy Modeling Forum (EMF-33) on climate change mitigation and large scale bioenergy deployment. Results indicate that CO2 emission mitigation triggers strong decline of fossil fuel use and rapid growth of bioenergy deployment around midcentury (~ 150 EJ/year) reaching saturation towards end-of-century. Varying context variables leads to diverse changes on mid-century bioenergy markets and carbon pricing. For example, reducing the ability to exploit the carbon value of bioenergy increases bioenergy use to substitute fossil fuels, whereas limitations on bioenergy supply shift bioenergy use to conversion alternatives featuring higher carbon capture rates. Radical variations, like fully excluding all technologies that combine bioenergy use with carbon removal, lead to substantial intersectorial effects by increasing bioenergy demand and increased economic pressure on both sectors. More gradual variations like selective exclusion of advanced bioliquid technologies in the energy sector or changes in diets mostly lead to substantial intrasectorial reallocation effects. The results deepen our understanding of the land-energy nexus, and we discuss the importance of carefully choosing variations in sensitivity analyses to provide a balanced assessment.

Keywords: Bioenergy; BECCS; Integrated assessment modeling; Land-energy nexus; Climate change mitigation (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (6)

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DOI: 10.1007/s10584-020-02895-z

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