Today we watched more of the video about planet in peril. Polar bears are at risk because the ice is melting, and they are the first animal to be put on the endangered species list because of global warming. By 2007, 1,000,000 square miles of sea ice has melted.
Carterets are sinking because the coral reef is dying because of bleaching. Bleaching is caused by global warming, and the coral lets the algae out, causing them to get the bleached color. Thermal expansion is when the water gets warmer and rises. Since the 20th century, water has been rising 1mm a year, but as of the 21century, it has been rising 3mm.
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