I am an economist and environmental health specialist, focusing on impact evaluations of development and health programmes using randomised, quasi-experimental and mixed-methods designs, systematic reviews and meta-analysis. At LSHTM I work on the health co-benefits of climate change mitigation with the Pathfinder Initiative, two research projects on Artificial Intelligence in evidence synthesis (Digital Evidence Synthesis Tool INnovation for Yielding Improvements in Climate & Health, DESTINY; Mobilising Evidence through Artificial Intelligence and User-Informed Synthesis, METIUS), evaluating extreme heat inventions in UK residences (HEARTH) and natural experiments of extreme weather adaptation (HPRU3 in Climate Change and Health Security). I work closely with global partners in evaluation and evidence synthesis including the UK Health Security Agency, Campbell South Asia and Cochrane, and am elected Co-Chair of the Campbell Collaboration Climate Solutions Coordinating Group. I am also a Methods Editor with Campbell Systematic Reviews. Previously, I founded the Systematic Reviews Programme and London Office of the International Initiative for Impact Evaluation (3ie), based at London International Development Centre, where I worked for 10 years, and was later seconded to the 3ie Evaluation Office based in New Delhi. I have worked for extended periods at the Ministry of Finance and Economic Planning in the Government of Rwanda in Kigali, the World Bank's Independent Evaluation Group in Washington, DC, the UK National Audit Office and the Poverty Research Unit at Sussex University. I have conducted assignments for the Asian Development Bank, Dasra Foundation, DFAT, DFID, FCDO, the Economist Intelligence Unit, Global Affairs Canada, the International Finance Corporation, the Netherlands Ministry of Foreign Affairs, Save the Children, Sightsavers, USAID, the Wellcome Trust and the World Health Organization among others. I hold a PhD in Impact Evaluation of Infectious Diseases and Public Health from LSHTM, where I studied under Professors Sandy Cairncross and Edoardo Masset, MA Development Economics from the University of Sussex, and BSc Economics from the University of York.