Paul R. Ehrlich
Hope on Earth
Richard Black is professor of human geography and head of the School of Global Studies at the University of Sussex. Godfried Engbersen is professor of sociology at Erasmus University Rotterdam. Marek Okólski is professor of demography and economics at the University of Warsaw and director of the Centre of Migration Research. Cristina Pantîru is a Ph.D. candidate and research officer at the Sussex Centre for Migration Research at the University of Sussex.