Business Green: Participants in the carbon market should from today find it easier to keep track of many of the key events influencing the price of carbon allowances, following the expansion of a new service designed to keep them abreast of the key conferences and deadlines that shape the market. Analyst IDEAcarbon yesterday launched a new partner programme designed to extend the reach of its online Carbon Calendar, which details a wide range of forthcoming events that may influence the market for …