TY - JOUR A1 - Bohra-Mishra, P. A1 - Oppenheimer, M. A1 - Hsiang, S.M. T1 - Nonlinear permanent migration response to climatic variations but minimal response to disasters Y1 - 2014 DO - 10.1073/pnas.1317166111 VL - 111 IS - 27 ER -