James G. Blight ... [et al.] ; foreword by Bruce Riedel. Paul R. Ehrlich ... [et al.] ; foreword by Lewis Thomas. Judith L. Irvin ... [et al.] ; foreword by Andre虂s Henri虂quez. Jeanne Ayache ... [et al.] ; foreword by Ron Anderson. Mikhail A. Fedonkin ... [et al.] ; foreword by Arthur C. Clarke. edited by J. McK. Watts ... [et al.] ; foreword by David Tonkin.