President Obama is withdrawing proposed Environmental Protection Agency changes to national smog standards. The president said a science review is underway on the current ozone standard — and rules will be reconsidered in 2013. Needless to say, environmentalists aren't happy.
The recent discovery of a woolly rhino skull on the Tibetan Plateau suggests that the rhino was one of the few animals that was prepared for the Ice Age when it came along. Scientists wonder which isolated places on Earth today will be the cradle of evolution for the next big environmental change.
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