Terry Wilson is a pioneer in using global positioning systems (GPS) to understand the loss of Antarctic ice. She says Antarctica's bedrock is rising as the ice melts and this will have implications for rising sea levels and our ability to manage their effect over time. Terry Wilson is a professor emerita in the School of Earth Sciences and senior research scientist at the Byrd Polar and Climate Research Center at the Ohio State University. This week she delivered the S.T. Lee Lecture in Antarctic Studies at the Victoria University Antarctic Research Centre.