Does marking polar bear as threatened help conserve the Arctic Zone?

The United States has listed the polar bear as a threatened species. Two-thirds of the polar bear population of 25,000 in the US could disappear by 2050. Climate change leading to massive melting of Arctic sea ice habitat of the bear is the major culprit. It has led to a fight between conservationists and oil companies as more and more of them head up north into the Arctic to explore more areas. However, are the measures environmentalists taking enough to protect the natural habitat and the species? Can we do more than just listing animals as endangered?

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