Afforestation and reforestation have varying biodiversity impacts across and within biomes
Afforestation and reforestation (AR) are effective strategies for large-scale carbon dioxide removal (CDR) and climate change mitigation, as they offer the potential to sequester vegetation and soil carbon. However, the expansion of AR raises concerns about the adverse impacts on biodiversity. While local studies have assessed these impacts, global-scale evaluations remain limited. Our study addressed the need for a comprehensive approach to mitigate the risks of AR and enhance its potential as a nature-based solution for both CDR and biodiversity conservation.