Warnings of a Doomed Planet

시즌 1, 에피소드 5: Venus is virtually a twin of Earth in size, mass and composition; much more like our planet than is Mars. Yet it has gone down a completely different - and deadly - evolutionary path. Experts share valuable lessons from Venus on the origins of life, acid rain, ozone loss, global warming and other questions. They make the passionate case for further exploring Earth's "evil twin sister."