Polar Bears in danger

Polar Bears and Arctic Ice

Below is a graph of the area of arctic ice as recorded by NASA satellites from when the first data was collected in 1979. In September 2007 when ice area dropped to 3 million square km. instead of the usual 4 or 5 million square km. news reports of this loss could hardly find words to describe it’s enormity.

"This grim news about polar bears and sea ice decline is horrifying, but it is a call to action, not despair," said Kassie Siegel of the Arizona-based Center for Biological Diversity. Source.


sea ice

Now that the ice has reformed after this unprecedented loss don’t wait for news reports to let you know this amazing news.

Assignment: Try to match the graph above with the report in this news article:

In an average August between 1979 and 2000, the Arctic Ocean was covered with about 3 million square miles of sea ice, according to the National Snow and Ice Data Center. By Labor Day this year, the total had shrunk to a little more than half that, shattering the previous record low set in 2005.

"Usually when you break a record it’s by a few percentages," said William Chapman, who monitors the Arctic for the University of Illinois, and was one of the first to point out this year’s "shocking" melt. "This year we blew right through it." Source.

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