Short- and long-term warming effects of methane may affect the cost-effectiveness of mitigation policies and benefits of low-meat diets

Autor: Ignacio Pérez-Domínguez, Agustin del Prado, Klaus Mittenzwei, Jordan Hristov, Stefan Frank, Andrzej Tabeau, Peter Witzke, Petr Havlik, Hans van Meijl, John Lynch, Elke Stehfest, Guillermo Pardo, Jesus Barreiro-Hurle, Jason F. L. Koopman, María José Sanz-Sánchez
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Nature Food
Nature Food 2 (2021)
Nature Food, 2, 970-980
ISSN: 2662-1355
Popis: © 2021, The Author(s).Methane’s short atmospheric life has important implications for the design of global climate change mitigation policies in agriculture. Three different agricultural economic models are used to explore how short- and long-term warming effects of methane can affect the cost-effectiveness of mitigation policies and dietary transitions. Results show that the choice of a particular metric for methane’s warming potential is key to determine optimal mitigation options, with metrics based on shorter-term impacts leading to greater overall emission reduction. Also, the promotion of low-meat diets is more effective at reducing greenhouse gas emissions compared to carbon pricing when mitigation policies are based on metrics that reflect methane’s long-term behaviour. A combination of stringent mitigation measures and dietary changes could achieve substantial emission reduction levels, helping reverse the contribution of agriculture to global warming. The authors thank the Global Economics Team of the Agricultural Model Inter-comparison and Improvement Program for its support during the conceptualization phase of this paper. A.T., H.v.M. and J.F.L.K. received funding from the Dutch Ministry of Agriculture, Nature and Food Security through the Wageningen University Knowledge Base programme (Circular and Climate Neutral Society, KB34 1-1C-1 Integrated toolbox for cross-sectoral forward looking assessments and scenarios). A.d.P., G.P. and M.J.S.-S. received support from the Spanish government (María de Maeztu excellence accreditation 2018-2022) and the Basque government (BERC 2018-2021 programme). A.d.P. was financed by the Ramón y Cajal programme from the Spanish Ministry of Economy, Industry and Competitiveness (RYC-2017-22143). K.M. received funding from the Norwegian Research Council under grant number 295789. J.L. acknowledges funding from the Wellcome Trust, Our Planet Our Health (Livestock, Environment and People—LEAP), award number 205212/Z/16/Z. The views expressed are purely those of the authors and may not in any circumstances be regarded as stating an official position of their respective institutions.
Databáze: OpenAIRE
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