Green jobs have been at the center of a number of controversies in economic development circles over the past decade. Key among these debates is whether or not sufficient job opportunities exist to justify large public investments in green job-training programs. A recent report from the Government Accountability Office (GAO) reveals that, at least at the federal level, a great deal of uncertainty remains about the green job labor market. The report lays out a number of challenges for green jobs initiatives at the Department of Labor, where job placement is only at 55 percent of its target levels. In doing so, the GAO report shows that there is room for improvement in green jobs programs at the federal, state and regional level.