Food security in a time of climate–food–water–energy convergence

Global food security is increasingly shaped by the convergence of climate change, water scarcity, energy transitions, and evolving food systems, creating complex and interdependent risks that cannot be addressed in isolation. This paper highlights the urgent need for integrated, systems-based approaches to understand and manage these interconnected challenges. It argues that traditional sectoral policies and fragmented governance structures are insufficient to respond to cascading risks across the climate–food–water–energy nexus. Drawing on interdisciplinary insights and global perspectives, the paper outlines key drivers of vulnerability, including resource competition, environmental degradation, and socio-economic inequalities, and emphasizes the importance of coordinated governance, innovation, and cross-sectoral collaboration. The authors call for strengthened science–policy interfaces, enhanced data integration, and inclusive decision-making processes to support resilient and sustainable food systems. Ultimately, the paper advocates for transformative approaches that align food security objectives with climate mitigation, adaptation, and sustainable resource management in an increasingly interconnected world.