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

17520 10 95768 3 294691 document 95768 8978_3_attach_11_25797_th_clean.pdf application/pdf 899b97e4f4f1d168c44f865a38a36bfb MD5 514342 2021-10-20 07:45:51 https://pure.iiasa.ac.at/id/eprint/17520/1/8978_3_attach_11_25797_th_clean.pdf 17520 1 1 application/pdf text en public cc_by_nc_4

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accepted 95769 2 294695 document 95769 lightbox.jpg image/png 2d978643a03282a93469f14f1579cee4 MD5 32324 2021-10-20 07:56:13 https://pure.iiasa.ac.at/id/eprint/17520/2/lightbox.jpg 17520 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en staffonly

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/95768 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/95768 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/95768 archive 353 disk0/00/01/75/20 2021-10-19 08:58:23 2024-09-09 12:48:24 2021-10-19 08:58:23 article show Hasegawa T. Fujimori S. 8258 0000-0001-7897-1796 Frank S. 1944 0000-0001-5702-8547 Humpenöder F. Bertram C. Després J. Drouet L. Emmerling J. Gusti M. 97792 Harmsen M. Keramidas K. Ochi Y. Oshiro K. Rochedo P. van Ruijven B. 92197 0000-0003-1232-5892 Cabardos A.-M. 2293 Deppermann A. 2072 Fosse F. Havlik P. 1868 0000-0001-5551-5085 Krey V. 8099 0000-0003-0307-3515 Popp A. Schaeffer R. van Vuuren D. Riahi K. 1696 0000-0001-7193-3498 Land-based implications of early climate actions without global net-negative emissions pub BNR IBF ECE S3 TISS 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. 2021-10-07 published Nature Publishing Group 10.1038/s41893-021-00772-w 2881 94 114 3102 3187 64 119 166 250 public Nature Sustainability TRUE 2398-9629 https://doi.org/10.5281/zenodo.5078072 data Exploring National and Global Actions to reduce Greenhouse gas Emissions (ENGAGE, H2020 821471) yes info:eu-repo/grantAgreement/EC/H2020/821471/EU//ENGAGE info:eu-repo/semantics/article info:eu-repo/semantics/embargoedAccess