The Obama Administration on April 22 proposed to require recipients of federal transportation dollars -- mostly states, cities, and metropolitan planning areas -- to track transportation-related emissions and set goals for cutting them. Although it would not establish targets or penalties, the proposal is designed to make state and regional infrastructure planners account for climate impacts to encourage "smarter" transportation planning strategies, such as mass transit and electric vehicles, while discouraging sprawl-inducing exurban roads projects. More