Technological avenues and market mechanisms to accelerate methane and nitrous oxide emissions reductions.

Autor: Singh U; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Algren M; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Schoeneberger C; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Lavallais C; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., O'Connell MG; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Oke D; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Liang C; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Das S; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Salas SD; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA., Dunn JB; Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA.
Jazyk: angličtina
Zdroj: IScience [iScience] 2022 Nov 24; Vol. 25 (12), pp. 105661. Date of Electronic Publication: 2022 Nov 24 (Print Publication: 2022).
DOI: 10.1016/j.isci.2022.105661
Abstrakt: Strategies targeting methane (CH 4 ) and nitrous oxide (N 2 O) emissions are critical to meeting global climate targets. Existing literature estimates the emissions of these gases from specific sectors, but this knowledge must be synthesized to prioritize and incentivize CH 4 and N 2 O mitigation. Accordingly, we review emissions sources and mitigation strategies in all key sectors (fuel extraction and combustion, landfilling, agriculture, wastewater treatment, and chemical industry) and the role of carbon markets in reducing emissions. The most accessible reduction opportunities are in the hydrocarbon extraction and waste sectors, where half (>3 Gt-CO 2 e/year) of the emissions in these sectors could be mitigated at no net cost. In total, 60% of CH 4 emissions can be mitigated at less than $50/t-CO 2 . Expanding the scope of carbon markets to include these emissions could provide cost-effective decarbonization through 2050. We provide recommendations for carbon markets to improve emissions reductions and set prices to appropriately incentivize mitigation.
Competing Interests: The authors declare no competing interests.
(© 2022 The Author(s).)
Databáze: MEDLINE
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