Summary of ' An Inconvenient Truth"

'An Inconvenient Truth' is a documentary film which is about the seriousnessof global warming caused by human activity and about the needs for immediate actions of the mankind and their governments to halt and reverse it. This was presented and asserted by Al Gore.

First of all, the global warming is happening.
There is 100 percent agreement among scientists about this fact. 925 recent articles in peer-review scientific journals prove it. However, a database search of newspaper and magazine articles shows that 57 percent question the fact of global warming because of disinformation campaign done by the energy industries. This is the same strategy used for years by the defenders of tabacco.

Second, the global warming is catastrophe.
Glaciers and lakes are shrinking, snows are melting and shorelines are retreating. 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. The 10 warmest years in history were in the last 14 years. Cores of polar ice show that carbon dioxide is Much higher than ever before in a quarter of a million years. Ups and downs of temperature and amount of carbon dioxide have their own patterns and they have correlation. In recent years, the graph of carbon dioxide keeps going up, higher and higher.

Third, the global warming is caused by human being.
The primary man-made cause of global warming is the burning of fossil fuels. We are taking energy stored over hundreds of millions of years in the form of coal, gas and oil and releasing it suddenly. This causes global warming, and there is a pass-along effect. Since glaciers and snow reflect sunlight but sea water absorbs it, the more the ice melts, the more of the sun's energy is retained by the sea.

Therefore, we should stop the global warming.
We need to take action right now. From the example of tobacco farm run by Al Gore's farther, we can learn that people have tendency not to take an action until they find the necessity in person, although they know what is right and what is needed to do. However, if we do nothing now, in about 10 years the plnet 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. We should switch to and encourage the development of alternative energy sources : Solar, wind, tidal and nuclear. We should quickly move toward hibrid and electric cars. We should support a big amount of money to public transit and subsidize the fare. We should save energy in our houses. Above all, politicians in every nation must have the courage to do what is necessary. It is not a political issue. It is a moral issue.