Navarro et al. (2026): Climate and ecological constraints of cultivating bioenergy crops for climate mitigation in tropical regions
Robert Fofrich Navarro, Alcen Chiu and Elsa M Ordway, IN: PNAS Nexus, https://doi.org/10.1093/pnasnexus/pgag123
Negative-emission approaches, such as bioenergy with carbon capture and storage (BECCS), are expected to play a crucial role in mitigating climate change. However, the capacity for biological carbon sequestration under changing climatic conditions remains highly uncertain, particularly in historically warm regions. Although bioenergy can be derived from various biological materials, nearly all operational BECCS facilities capture COâ‚‚ from bioethanol fermentation. The authors therefore assess the share of bioenergy crop cultivation that will be exposed to future climate conditions beyond their historically safe climate space (SCS), focusing on tropical regions.