A fully-funded PhD studentship is available in the group of Andrea Paulillo at University College London (UCL) Chemical Engineering, in collaboration with Paul Dodds at the UCL Energy Institute. The project focuses on decarbonising the UK energy system within planetary boundaries, integrating Life Cycle Assessment (LCA), planetary boundaries frameworks, and whole-system energy modelling. The research aims to advance methods in absolute environmental sustainability assessment and contribute to policy-relevant, real-world impact for net-zero strategies and industrial decarbonisation. The position offers opportunities to develop advanced skills in LCA and energy systems modelling, and to collaborate across Chemical Engineering and the Energy Institute. The studentship is open to UK (home) and international candidates; funding covers home fees and stipend, while international applicants must cover the fee difference or secure a scholarship. Applicants should have a strong background in a relevant discipline and an interest in sustainability, LCA, or energy systems. The application deadline is 31 December 2025. For full details and application instructions, visit the provided link.