His research focuses on the physical processes governing the Earth's high latitudes, with an emphasis on atmosphere-ocean-ice interactions. He investigates these processes using a combination of theory, numerical modeling, and observations. Before coming to North Carolina, Till was a postdoc at the Scripps Institution of Oceanography at UC San Diego. He holds a M.Sci. in Physics and Philosophy from the University of Bristol and a Ph.D. in Applied Mathematics from the University of Cambridge.