Impact of methane and black carbon mitigation on forcing and temperature: a 
multi-model scenario analysis

Smith, Steven J.; Chateau, Jean; Dorheim, Kalyn; Drouet, Laurent; Durand-Lasserve, Olivier; Fricko, Oliver; Fujimori, Shinichiro; Hanaoka, Tatsuya; Harmsen, Mathijs; Hilaire, Jérôme; Keramidas, Kimon; Klimont, Zbigniew; Luderer, Gunnar; Moura, Maria Cecilia P.; Riahi, Keywan; Rogelj, Joeri; Sano, Fuminori; van Vuuren, Detlef P.; Wada, Kenichi

doi:10.1007/s10584-020-02794-3

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Impact of methane and black carbon mitigation on forcing and temperature: a multi-model scenario analysis

Urheber*innen

Smith, Steven J.
External Organizations;

Chateau, Jean
External Organizations;

Dorheim, Kalyn
External Organizations;

Drouet, Laurent
External Organizations;

Durand-Lasserve, Olivier
External Organizations;

Fricko, Oliver
External Organizations;

Fujimori, Shinichiro
External Organizations;

Hanaoka, Tatsuya
External Organizations;

Harmsen, Mathijs
External Organizations;

/persons/resource/hilaire

Hilaire, Jérôme
Potsdam Institute for Climate Impact Research;

Keramidas, Kimon
External Organizations;

Klimont, Zbigniew
External Organizations;

/persons/resource/Gunnar.Luderer

Luderer, Gunnar
Potsdam Institute for Climate Impact Research;

Moura, Maria Cecilia P.
External Organizations;

Riahi, Keywan
External Organizations;

Rogelj, Joeri
External Organizations;

Sano, Fuminori
External Organizations;

van Vuuren, Detlef P.
External Organizations;

Wada, Kenichi
External Organizations;

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Zitation

Smith, S. J., Chateau, J., Dorheim, K., Drouet, L., Durand-Lasserve, O., Fricko, O., Fujimori, S., Hanaoka, T., Harmsen, M., Hilaire, J., Keramidas, K., Klimont, Z., Luderer, G., Moura, M. C. P., Riahi, K., Rogelj, J., Sano, F., van Vuuren, D. P., Wada, K. (2020): Impact of methane and black carbon mitigation on forcing and temperature: a multi-model scenario analysis. - Climatic Change, 163, 3, 1427-1442.
https://doi.org/10.1007/s10584-020-02794-3

Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_24695

Zusammenfassung

The relatively short atmospheric lifetimes of methane (CH4) and black carbon (BC) have focused attention on the potential for reducing anthropogenic climate change by reducing Short-Lived Climate Forcer (SLCF) emissions. This paper examines radiative forcing and global mean temperature results from the Energy Modeling Forum (EMF)-30 multi-model suite of scenarios addressing CH4 and BC mitigation, the two major short-lived climate forcers. Central estimates of temperature reductions in 2040 from an idealized scenario focused on reductions in methane and black carbon emissions ranged from 0.18–0.26 °C across the nine participating models. Reductions in methane emissions drive 60% or more of these temperature reductions by 2040, although the methane impact also depends on auxiliary reductions that depend on the economic structure of the model. Climate model parameter uncertainty has a large impact on results, with SLCF reductions resulting in as much as 0.3–0.7 °C by 2040. We find that the substantial overlap between a SLCF-focused policy and a stringent and comprehensive climate policy that reduces greenhouse gas emissions means that additional SLCF emission reductions result in, at most, a small additional benefit of ~ 0.1 °C in the 2030–2040 time frame.