A "green" energy company that received tens of millions of dollars from taxpayers while promising 70 jobs by the end of this year has created only three and received strong criticism from environmental and fiscal groups across the political spectrum. Mascoma Corp., a New Hampshire-based business, was awarded a grant of $20 million from the state of Michigan as part of the Centers of Energy Excellence program in 2008 and amounts totaling up to $100 million from the federal government over the last few years to build a plant in Kinross, a small town in the Upper Peninsula. The company...