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Santa’s Helpers

1. Melting arctic ice obviously would be a threat to Santa, as the cartoon suggests. More realistically, what other dangers does it pose?
2. Can you think of animals whose existence might be endangered by climate changes in the arctic? [See Arctic Warming: Polar Bears on Thin Ice, January 2005].
3. Global warming can cause higher sea levels as a result of runoff water from melting glaciers. [See What’s Going On with Greenland’s Glaciers?, March 2006]. How else does it cause higher sea levels?
4. Canada was partly explored by voyagers looking for a “Northwest Passage” from Europe to Asia. Are prospects changing for a “Northwest Passage”? [See On Top of the World with Nowhere to Stand, October 2000].
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