Earth Emergency

PBS | 8:00 pm

Richard Gere narrates this new one-hour documentary in which a number of respected climate scientists explain how human activity causes dangerous warming "feedback loops" that push the climate to a point of no return, and discuss what can be done to stop them. The overall tone of the documentary, while stark in its warning, is somewhat more hopeful than other such projects, presenting a happier future if changes are made soon. Climate activist Greta Thunberg, actress Jane Fonda and the Dalai Lama also are featured.