BusinessGreen: France's environment minister has hinted at a revival of plans for a carbon tax on consumers and businesses, announcing that Prime Minister Jean-Marc Ayrault has backed plans for a new "green tax". Minister for Ecology Phillipe Martin announced late last week that the Prime Minister had approved proposals for a so-called "climate energy contribution" tax. Precise details of the tax remain unclear, however a spokeswoman for Martin told BusinessGreen it would not create a new tax but replace an existing...