Brussels, 04/11/2010 (Agence Europe) - Agricultural and forestry tractor manufacturers will, in principle, have to meet tougher carbon monoxide, hydrocarbon, nitrogen oxide and particulate matter emission limit values from 1 January 2011. However, the economic and financial crisis has hit this sector very hard and it is having difficulty in funding the technological research and development necessary if tractors are to be fitted with engines that can meet the new limits within the set...