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Global warming is real.
It is caused by human activity.
Mankind 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 toward destruction 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.
These facts are stated by Al Gore 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 controversy 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 vast screen, in front of an audience. 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 retreating.
He provides statistics: The 10 warmest years in history were in the last 14 years. Last year South America experienced its first hurricane. Japan and the Pacific are setting records for typhoons. Hurricane Katrina passed over Florida, doubled back over the Gulf, picked up strength from unusually warm Gulf waters, and went from Category 3 to Category 5. There are changes in the Gulf Stream and the jet stream. Cores of polar ice show that carbon dioxide is much, much higher than ever before in a quarter of a million years. It was once thought that such things went in cycles. Gore stands in front of a graph showing the ups and downs of carbon dioxide over the centuries. Yes, there is a cyclical pattern. Then, in recent years, the graph turns up and keeps going up, higher and higher, off the chart.
The...