1. Polar Bears Resort to Cannibalism as Arctic Ice Shrinks
... "threatened" under the Endangered Species Act, saying that cannibalism demonstrates the adverse effects that global warming has had on the bears. Less than thirty years ago, there was 7 million square kilometers (2.5 million square miles) of ice at the end of each summer. Today's levels are down about 40% from those numbers. A research scientist with the National Snow and Ice Data Center in ... Boulder, Colorado stated that "Seven million square kilometers roughly corresponds to an area of the lower 48 United States." Imagine if, back in the early 1980s, the lower 48 states were covered...
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