Providence Journal: Rhode Island has joined with 10 other states to try to reduce the amount of carbon emissions produced by vehicles. It didn`t get much public attention over the holidays, but on Dec. 29 Governor Carcieri signed a memorandum of understanding that links Rhode Island with 10 other states in an unusual effort to lower the amount of carbon emissions produced by cars, buses and trucks. The agreement calls on the states to study establishment of a so-called “low carbon fuel standard” …