Reuters: Confidence in the global greenhouse gas emissions market dipped slightly in 2007 despite a surge in the market’s value, a survey of market participants released on Wednesday showed. The Index of Greenhouse Gas (GHG) Market Sentiment, published by the non-profit International Emissions Trading Association (IETA) on the sidelines of a carbon markets conference, showed that 73 percent of 102 respondents were confident about the carbon market in 2007, down from 79 percent recorded in the …