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Of course, grappling with something as vastly complex as climate science involves plenty of uncertainties: What threshold represents a tipping point, after which changes accelerate? What are the chances of some unforeseen catastrophic event? What measures might come into play that limit CO2 emissions and thus mitigate climate change? And...
It works like this: Across the post-Big Bang universe, collections of Higgs bosons make up a pervasive Higgs field - which is theoretically where particles get mass. Moving particles through a Higgs field is like pulling a weightless pearl necklace through a jar of honey, except imagine that the honey...
For the Democrats, the Republican National Committee chairman is the gift that keeps on giving. Hardly a week goes by without some gaffe or scandal involving Michael Steele, from his threat to back primary challenges to moderate Republicans who supported the stimulus bill, to this week's episode in which...
Hu's attendance at the nuclear summit had been in doubt following Obama's January decision to approve the sale of $6.4 billion in arms to Taiwan, which China considers part of its territory. A month later, Obama met with the Dalai Lama, the exiled Tibetan spiritual leader accused by...
Hu's visit to Washington will come just days before an April 15 deadline for U.S. Treasury Secretary Timothy Geithner to issue a semiannual report that could label China a currency manipulator. China's currency, the renminbi, has been pegged to the dollar, and many economists say it is undervalued...