लेखक: Tanya Heikkila

The Authors STEVEN COHEN is executive director and COO of Columbia University”s Earth Institute and professor in the Practice of Public Affairs at the School of International and Public Affairs. WILLIAM EIMICKE is professor in the Practice of International and Public Affairs and founding executive director of the Picker Center for Executive Education at Columbia University. TANYA HEIKKILA is associate professor and doctoral program director at the School of Public Affairs at the University of Colorado, Denver.