Now is the time for action: Transitions and tipping points in complex environmental systems

Susan G. Stafford, Dennis M. Bartels, Sandra Begay-Campbell, Jill L. Bubier, John C. Crittenden, Susan L. Cutter, John R. Delaney, Teresa E. Jordan, Alan C. Kay, Gary D. Libecap, John C. Moore, Nancy N. Rabalais, David Rejeski, Osvaldo E. Sala, J. Marshall Shepherd, Joseph Travis