The one hour episodes in "Years of Living Dangerously" show that patriotism has a great number of manifestations. In looking at power stations in India, water use in California, rainforests in Brazil, and several other challenges the celebrity hosts -- namely David Letterman, Don Cheadle, Gisele Bundchen, and others -- bring the issues to light. The documentary is so good most people will see it one year, then see it again a few years later and be equally impressed. The journeys, interviews, and commentary by these climate activists and speakers are about as good as it gets with documentary film. Worth sharing with friends and family. If we don't act on climate and natural resource problems it won't be the fault of these people or the media but because --while there are economic benefits from efficiency and most alternative energy sources -- advanced energy systems will also require some very large financial expenditures paid for by national governments.