A study presented in May, 2014 found that a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline. Professor Eric Rignot, a glaciologist at NASA's Jet Propulsion Lab in Pasadena, CA who teaches Earth System Science at UC Irvine, discusses how NASA and the European Space Agency, along with scientists, are collecting data from space, not just from airplanes. Produced by TUC Radio.