The Master of Environmental Science (MESc) at Yale School of the Environment is a research-focused graduate degree designed for students seeking to conduct original scientific research contributing to both basic and applied knowledge in environmental fields. The program blends core coursework—primarily in research methods and proposal development—with significant independent thesis research under faculty supervision. Admitted students work with an advisor to design and execute a research project aligned with their interests. Degree completion requires at least 48 credits: at least 24 from formal courses and at least 12 from thesis research. MESc students have access to the full spectrum of Yale’s courses and resources, enabling them to build a unique two-year curriculum tailored to their career objectives.