Thursday, May 15, 2008

Inconvenient truth

The movie “An Inconvenient Truth”:
An inconvenient truth is an American Academy Award-winning documentary film about global warming, directed by Davis Guggenheim, and presented by Al Gore (ran against G. Bush in the 2000 elections). It focuses on Al Gore when he traveled to educate the people about the problems of global warming. It follows the presentation that Al Gore used around the world, and the data he used and the effect of it on climate change. It talked about his life story as well as showing as Al Gore “as never seen before in the media funny, engaged, and open.” The film tries to show us how dangerous this “planetary emergency” is, and how we should act quickly.
What is Global Warming?
The film also explains what global warming is, it is when the heat from the sun is stuck in the earth’s atmosphere because of pollution. Carbon dioxide and other gases warm the planet by trapping this heat in the atmosphere. These “greenhouse” gases increase and come from burning fossil fuels (oil, gas, coal) and cutting down forests and trees. This is good in only one way because it allows us to be able to live in this planet. But, if we keep on burning these fossil fuels the Carbon dioxide will increase in the atmosphere and make temperatures increase also, that is why it is called ‘global warming’. The film also shows us that now there is more carbon dioxide in the atmosphere than 650,000 years ago.
What are the effects of Global warming?
Gore starts talking about the greenhouse effect, and its problems. The problem is because greenhouse gases let solar radiation come into the earth’s atmosphere but don’t let the infrared radiation leave the atmosphere into space. Gore explains how people that believe that this will not affect us because the Earth is too big are wrong. He explains this by showing photos of the thin Earth’s atmosphere, and how this thin layer is becoming thicker because of a lot of greenhouse gases like carbon dioxide.
Gore also explains how this affects glaciers, he shows us before and after pictures of glaciers and how they have melted over time. He also show pictures of Mt. Kilimanjaro in Kenya, where 11,000 year old glaciers are melting and almost gone. He explains in fake pictures of what could happen to Manhattan, Florida, India, and China if Greenland and Antarctic “ice-caps” would melt. This would cause the sea level to increase almost 20 feet.

Gore also explained that global warming and climate change could cause dryness to increase “drought” and less water supplies. He explained this by the “heat wave” that affected Europe in summer 2004. Another effect is that it would cause hurricanes to get stronger, like Katerina became stronger when it passed on the Gulf of Mexico that was hotter because of global warming. Graphs also showed that this would affect insurance companies, because of natural disasters. Global warming also caused natural disaster to increase in 2004 like 10 typhoons happened in Japan, more tornadoes in the U.S., and the firs hurricane in Brazil. Climate change also leads to closing of the “Gulf Stream” current, more insect problems, more diseases, losing “coral reefs”, losing ice in the “polar ice-cap”, and even more scientific problems.

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