Critics of Al Gore's film, "An Inconvient Truth"

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The following quote is just a sample from a well researched article critiquing Al Gore's movie, "An Inconvient Truth". "Gore's credibility is damaged early in the film when he tells the audience that, by simply looking at Antarctic ice cores with the naked eye, one can see when the American Clean Air Act was passed. Dr. Ian Clark, professor of Earth Sciences at the University of Ottawa (U of O) responds, "This is pure fantasy unless the reporter is able to detect parts per billion changes to chemicals in ice." Air over the United States doesn't even circulate to the Antarctic before mixing with most of the northern, then the southern, hemisphere air, and this process takes decades. Clark explains that even far more significant events, such as the settling of dust arising from the scouring of continental shelves at the end of ice ages, are undetectable in ice cores by an untrained eye." The url below leads to the article the quote was extracted from. http://www.canada.com/nationalpost/financialpost/story.html?id=d0235a70-33f1-45b3-803b-829b1b3542ef&p=1 The long time climatologist Dr. Gray, in testimony before Congress had this to say about global warming: "Although initially generated by honest scientific questions, this topic has long ago advanced into the political arena and taken on a life of its own. It has been extended and grossly exaggerated and misused by those wishing to make gains from the exploitation of ignorance on this subject. This includes many governments of western countries, the media, and scientists who were willing to bend their objectivity to obtain government grants for research. It is unfortunate that most of the resources for climate research come from the federal government. When a national government takes a political position on a scientific topic, the wise meteorologist or climatologist either joins the crowd or keeps his/her mouth shut. Scientists can be punished if they do not accept the current views of their funding agents. An honest and objective scientific debate cannot be held in such a political environment. I have closely followed the greenhouse gas warming arguments. From what I have learned of how the atmosphere functions in over 50 years of study and forecasting, I have been unable to convince myself that a doubling of human-induced greenhouse gases can lead to anything but quite small and likely insignificant amounts of global warming (~ 0.2-0.3 degree C)." All in all, I have concluded that politicians like Al Gore are alarmists trying to push propaganda that is only a vehical for a return to power. Al Gore is trying to scare folks into voting him back into office. Then when the dreaded global warming does not destroy the planet during his term of office, rest assured he will soothingly in a loving fatherly voice remind us all of how his administration adverted the apocalypse! Which was never going to happen anyway! I hope all of you interested in this topic will use the excellant search engines available on the internet to look up the average tempature of the earth and its rate of change. Also look up how fast the oceans are rising. There are real scientific data concerning these topics available. If you look these things up, you will no longer be alarmed at the impending doom of the planet.