The U.S. carbon market that faded over the past decade as European Union trading took off is getting a fresh look after President Barack Obama signed a deal with China to curb emissions. The climate deal between the two nations, which together spew out 42 percent of the world's emissions, may be the first step toward a global carbon market, said Bernadett Papp, an analyst at Vertis Environmental Finance Ltd. in Budapest. The accord "weakens the argument" of European nations that say countries outside the region aren't acting on climate change, said Mark Lewis, an analyst at Kepler Cheuvreux SA in Paris.
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