I want to write this review so every reader will begin it and finish it. Global warming is real. It is caused by human activity. Humankind and its governments must begin immediate action to halt and reverse it. If we do nothing, in about 10 years the planet may reach a "tipping point" and begin a slide to damage of our civilization and most of the other species on this planet.
After that point is reached, it would be too late for any action.
Al Gore states these facts in the documentary "An Inconvenient Truth." Forget he ever ran for office. Consider him a concerned man speaking out on the approaching crisis. "There is no argument about these facts," he says in the film. "Out of 925 recent articles in peer-review scientific journals about global warming, there was no disagreement. Zero."
He stands on a stage before a huge screen, in front of an meeting. The documentary is based on a speech he has been developing for six years, and is supported by dramatic visuals. He shows the famous photograph "Earthrise," taken from space by the first American astronauts. Then he shows a series of later space photographs, clearly indicating that glaciers and lakes are shrinking, snows are melting, shorelines are moving back.