Surviving Progress 1:22:09
The Superior Human? 1:13:33
Call of Life — Facing the Mass Extinction 1:19:59
The Planet 1:20:54
Food or Famine 1:32:29
Arithmetic, Population and Energy 1:14:02
How Many People Can Live On Planet Earth? 58:12
What A Way to Go: Life at the End of Empire 2:03:17