IETA's State of the Greenhouse Gas Market 2003 aims to provide an analysis of the evolution of the market over 2003 from the point of view of a number of different private sector actors engaged in the field. Contributors include (among others): Natsource, Point Carbon, World Bank, BP, PriceWaterhouse Coopers, Shell, AEP, CCX and SGS. Individual articles provide insightful perspectives and analyses on the US, European, Japanese, Canadian, and Latin American carbon markets.