The choice of land-based climate change mitigation measures influences future global biodiversity loss

Hirata, A., Ohashi, H., Hasegawa, T., Fujimori, S. ORCID: https://orcid.org/0000-0001-7897-1796, Takahashi, K., Tsuchiya, K., & Matsui, T. (2024). The choice of land-based climate change mitigation measures influences future global biodiversity loss. Communications Earth & Environment 5 (1) e259. 10.1038/s43247-024-01433-4.

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Abstract

Climate mitigation is reported to benefit biodiversity globally. However, the impacts of mitigation measures based on large-scale land-use modifications can be concentrated in the regions where they are introduced, resulting in regional mismatches between mitigation efforts and biodiversity benefits. Here, we evaluated the impacts of large-scale deployment of bioenergy with carbon capture and storage and afforestation to attain the climate stabilization target stated by the Paris Agreement on global and regional biodiversity by using an integrated model framework. Our results highlight that climate mitigation efforts can benefit global biodiversity regardless of large-scale implementation of land-based mitigation measures. However, the negative impacts of mitigation measures on biodiversity are concentrated in regions with a higher contribution to land-use change and carbon sequestration. The results imply the need to consider the unequal regional distribution of benefits from climate mitigation, as well as mitigation options that avoid regional biodiversity loss by minimizing land-use change.

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