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Coral - tiny algae which live symbiotically inside the...

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Source: World Wildlife Foundation Website – Feb. 2007 Off the Internet at: http://www.panda.org/about_wwf/ Article Name: Impacts of Global Warming on Corals Authors: © WWF-Canon and Cat Holloway Article Summary: This article is about the threat global warming is posing on corals around the world. It opens with a frightening statistic which states that less than 5% of the Great Barrier Reef will remain by the year 2050 is the world fails to reduce it’s carbon dioxide emissions. The author goes on in the article to describe the importance of coral reefs for biodiversity because they provide a home to over 25% of all sea life. The article contains two photos of corals, which have become “bleached” due to the affect global warming is causing to ocean temperatures. Bleaching of coral occurs when water temperatures rise to high and are sustained for sustained periods of time. According to the author, this heat “affects the
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Unformatted text preview: tiny algae which live symbiotically inside the corals and supply them with food. The heat stress damages the algae and in consequence leads to coral death.” This largest of these bleachings so far occurred in the autumn of 2005 when much of the Caribbean’s Coral’s died. The author warns that global warming may mean a “death sentence” for many of the world’s coral reefs and that most of the world could be gone in our lifetime if the present rate of destruction continues. The end of this article describes other effects of global warming that could threaten coral reefs including; more frequent tropical storms, heavy rains and flooding. It also says that local conservations actions alone will not be enough to protect the coral reefs and that our only chance to save them is to limit the global temperature increase by the end of the century to less than 2 Degrees Celsius....
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