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Hasegawa, T., Fujimori, S. 
ORCID: https://orcid.org/0000-0001-7897-1796, Frank, S. ORCID: https://orcid.org/0000-0001-5702-8547, 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. ORCID: https://orcid.org/0000-0003-1232-5892, Cabardos, A.-M., Deppermann, A., Fosse, F., Havlik, P. ORCID: https://orcid.org/0000-0001-5551-5085, Krey, V. ORCID: https://orcid.org/0000-0003-0307-3515, et al.
(2021).
Land-based implications of early climate actions without global net-negative emissions.
Nature Sustainability 10.1038/s41893-021-00772-w.
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Abstract
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.
| Item Type: | Article |
|---|---|
| Research Programs: | Biodiversity and Natural Resources (BNR) Biodiversity and Natural Resources (BNR) > Integrated Biosphere Futures (IBF) Energy, Climate, and Environment (ECE) Energy, Climate, and Environment (ECE) > Sustainable Service Systems (S3) Energy, Climate, and Environment (ECE) > Transformative Institutional and Social Solutions (TISS) |
| Related URLs: | |
| Depositing User: | Luke Kirwan |
| Date Deposited: | 19 Oct 2021 08:58 |
| Last Modified: | 09 Sep 2024 12:48 |
| URI: | https://pure.iiasa.ac.at/17520 |
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