Carbon prices climbed further yesterday, with the December 2006 contract being traded above 29 euros for most of the day, reaching an intraday high of EUR 29.50 in early trade before dropping to 28.80. The contract closed at 29.20, up 40 cents day on day. December 2007 broke through the 30 euro mark and was last quoted at 30.25 (+0.45). Italian buyers and technical buying signals were...