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  Land-based implications of early climate actions without global net-negative emissions

Hasegawa, T., Fujimori, S., Frank, S., Humpenöder, F., Bertram, C., Després, J., Drouet, L., Emmerling, J., Gusti, M., Harmsen, M., Keramidas, K., Ochi, Y., Oshiro, K., Rochedo, P., van Ruijven, B., Cabardos, A.-M., Deppermann, A., Fosse, F., Havlik, P., Krey, V., Popp, A., Schaeffer, R., van Vuuren, D., Riahi, K. (2021): Land-based implications of early climate actions without global net-negative emissions. - Nature Sustainability, 4, 12, 1052-1059.
https://doi.org/10.1038/s41893-021-00772-w

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 Urheber:
Hasegawa, Tomoko1, Autor
Fujimori, Shinichiro1, Autor
Frank, Stefan1, Autor
Humpenöder, Florian2, Autor              
Bertram, Christoph2, Autor              
Després, Jacques1, Autor
Drouet, Laurent1, Autor
Emmerling, Johannes1, Autor
Gusti, Mykola1, Autor
Harmsen, Mathijs1, Autor
Keramidas, Kimon1, Autor
Ochi, Yuki1, Autor
Oshiro, Ken1, Autor
Rochedo, Pedro1, Autor
van Ruijven, Bas1, Autor
Cabardos, Anique-Marie1, Autor
Deppermann, Andre1, Autor
Fosse, Florian1, Autor
Havlik, Petr1, Autor
Krey, Volker1, Autor
Popp, Alexander2, Autor              Schaeffer, Roberto1, Autorvan Vuuren, Detlef1, AutorRiahi, Keywan1, Autor mehr..
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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 Zusammenfassung: Delaying climate mitigation action and allowing a temporary overshoot of temperature targets require large-scale carbon dioxide removal (CDR) in the second half of this century that may induce adverse side effects on land, food and ecosystems. Meanwhile, meeting climate goals without global net-negative emissions inevitably needs early and rapid emission reduction measures, which also brings challenges in the near term. Here we identify the implications for land-use and food systems of scenarios that do not depend on land-based CDR technologies. We find that early climate action has multiple benefits and trade-offs, and avoids the need for drastic (mitigation-induced) shifts in land use in the long term. Further long-term benefits are lower food prices, reduced risk of hunger and lower demand for irrigation water. Simultaneously, however, near-term mitigation pressures in the agriculture, forest and land-use sector and the required land area for energy crops increase, resulting in additional risk of food insecurity.

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Sprache(n): eng - Englisch
 Datum: 2021-08-162021-10-072021-12
 Publikationsstatus: Final veröffentlicht
 Seiten: 8
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/s41893-021-00772-w
PIKDOMAIN: RD3 - Transformation Pathways
Organisational keyword: RD3 - Transformation Pathways
Research topic keyword: 1.5/2°C limit
Research topic keyword: Climate Policy
Research topic keyword: Food & Agriculture
Research topic keyword: Land use
Research topic keyword: Mitigation
Regional keyword: Global
Model / method: Open Source Software
Model / method: LPJmL
Model / method: MAgPIE
Model / method: REMIND
MDB-ID: yes - 3276
 Art des Abschluß: -

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Titel: Nature Sustainability
Genre der Quelle: Zeitschrift, SCI, Scopus
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 4 (12) Artikelnummer: - Start- / Endseite: 1052 - 1059 Identifikator: Publisher: Springer Nature
Anderer: 2398-9629
CoNE: https://publications.pik-potsdam.de/cone/journals/resource/nature-sustainability