As expected, the U. S. Department of the Interior added the polar bear to the list of threatened species under the Endangered Species Act last week. Even with the Bush administration's attempt to render the ruling toothless, this action will almost surely go down in history as the turning point in the global-warming debate.
The department concluded that the past and projected melting of sea ice in the Arctic poses an immediate threat to the polar bear's habitat. It pointed to greenhouse-gas-induced climate change as a primary cause for the recession of the sea ice, and emphasized that oil and gas development in the Arctic isn't the reason the polar bear is threatened.
Make no mistake, within a year or two, we can expect the polar bear to begin influencing everyday U. S. economic life.
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