Successfully reducing greenhouse gas emissions (GHGs) from transportation is "critical to meeting national goals" to cut GHGs, according to a new report released today by a diverse group of federal agencies and advocacy groups, including Environmental Defense Fund.

The study, Moving Cooler: Transportation Strategies to Reduce Greenhouse Gas Emissions, is authored by the transportation consulting firm, Cambridge Systematics. The study is described as the first-ever comprehensive analysis of transportation efficiency and its relationship to greenhouse gas reductions and consumer savings.