The author of Tides of Light offers his Nebula Award-winning SF classic-a combination of hard science, bold speculation, and human drama. In the year 1998, a group of scientists works desperatey to communicate with the scientists of 1962, warning of an ecological disaster that will destroy the oceans in the future-if it is not averted in the past | Timescape by Gregory Benford, Mass Market Paperback | Indigo Chapters