The production company behind "An Inconvenient Truth" once again addresses issues surrounding climate change in this globe-trotting documentary. Profiling active environmentalists all over the world, the production closely observes how both the young and old of India, New Guinea, Africa, London, Mumbai, and Appalachia are working to improve "green" conditions in their communities. Narrated by Tilda Swinton. 88 min. Standard; Soundtrack: English Dolby Digital stereo.