Updated Saturday, December 1, 2007 0:00 am TWN, AFP Japan firm announces first carbon spot tradeJapanese trading house Marubeni Corp. said it had sold the equivalent of 10,000 tons of carbon credits to a Japanese power company. Marubeni earned the credits by supporting a project in South Korea that is decomposing hydrofluorocarbon-23, a refrigerant known to contribute to global warming, a company statement said. | Japan Breaking News Most Read |