The film is accessible and communicates the science of global warming in a manner that is understandable even for those without a scientific background. Gore explains the basics of how the earth’s temperatures are kept constant, but how human interaction with the natural environment since the Industrial Revolution has caused carbon dioxide (CO2) levels to rise and with it the planet’s average temperature. He also illustrates how warmer temperatures cause the melting of glaciers, which in turn affect the salt levels in the sea, increase ocean temperatures, affect currents and strengthen storms. The presentation includes impressive visual supports which demonstrate the level of climate change already wrought from our consumption of carbon. He details the elements of the modern environmental movement and traces the development of his interest and involvement in climate change from his university days onward. The film’s title alludes to the hesitancy of politicians and governments to address climate change because of the tough and potentially unpopular actions that are required to tackle the issue, the financial cost of changing to less environmentally damaging energy sources, and the need to alter our lifestyles and means of production. Gore details some of the elaborate and underhanded efforts by United States government officials to hide the truth about global warming from the American people. This documentary film about global warming was inspired by the campaigning work of Al Gore, the former United States Vice President, to raise awareness of the issue and encourage action against climate change. The film premiered at the Sundance Film Festival in Sundance, Utah in 2006, and has since won an Academy Award and become the fourth highest grossing documentary of all time. The content of the film largely derives from lectures delivered by Gore at a number of universities and schools around the world. “There are good people….who hold this at arm’s length because if they acknowledge it and recognize it then the moral imperative to make big changes is inescapable” (Gore, 2006).
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