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...latest evidence for that assertion comes in a study just published in the journal Forest Ecology and Management, in which Finnish researchers looked at how the northern forests will respond as the growing season gets longer. In the current climate, says lead author Anna Kuparinen, of the University of Helsinki, pine and birch trees in the northernmost parts of Europe are stunted, in part because they have less time to grow each year than their more southerly counterparts. They've also evolved mechanisms that protect them from the harshest cold. "They actually stop growing before the frost comes," says Kuparinen...
Climate change will, moreover, lead to different effects in different parts of the world. "In northern areas," says Lobell, "you'll see an expansion of the growing season" - which, if the Finnish study is correct, won't necessarily help forests, but could be good for crops, since you can deliberately plant seeds that are suited to long summers. But in arid parts of the tropics, he says, where plant growth is limited by the availability of water, more frequent droughts could make things worse. "Large parts of the world," says Field, "are already at the warm edge of where things...
...said that analysis found that mutations at solely sites 46 or 82 lead to weak resistance to Indinavir, an HIV protease inhibitor, but mutations at site 54 alone have no effect. More surprisingly, mutations at sites 54 and 45 actually made the virus even more susceptible to the drug...
Theodore J. Boutrous, Jr. of Gibson, Dunn & Crutcher—one of the lead lawyers for the plaintiffs who put Cott on the witness stand—wrote in an e-mailed statement that Cott was a strong addition to his case...
...Walking such a precarious tightrope means Hanoi - as well as other governments claiming the Spratlys and the Paracels - have to measure their actions carefully. "The real risk in the South China Sea," says Emmers, "is that of a miscalculation that could lead to skirmishes and a clash of arms." As signs of meaningful cooperation are few, most expect this tacit consolidation of interests - including China's economic expansion into the Paracels - to continue. How this chess game plays out may have broader ramifications as the Chinese military extends its clout and influence in the coming decades. "It's an interesting...