Professor López-Carr uses mixed methods to examine potential win-win outcomes for people and the environment. He researches links among population, health, livelihoods, and the environment for equitable sustainable development and conservation solutions through projects in Latin America, Asia, Africa, and California. López-Carr is a Kavli Frontiers of Science Fellow, a Fellow of the American Association for the Advancement of Science (AAAS), and recipient of the Outstanding Population Research Award of the Association of American Geographers. He has authored with colleagues and with more than 50 student mentees over 190 publications thanks to funding from over 50 fellowships, grants, and awards from NASA, NSF, NIH, NOAA, the UN, the Mellon and Fulbright Foundations, and numerous other sources.