Transportation contributes to roughly a fifth of greenhouse gas emissions, and as a growing sector of the economy, its contribution to climate change, if remained unchanged, could even grow. This is particularly true in the developing world, where the growth rates of air and ship transport are expected to exceed those of the EU, and worldwide objectives to curb greenhouse gas emissions by 2050 by sixty to eighty percent could be placed in serious jeopardy. This book addresses the key issues of controlling transportation growth and identifying and implementing measures that would significantly reduce the emissions of greenhouse gases from transport while maintaining its vital role in generating prosperity and mobility for future generations. This book describes the challenge that transport constitutes today as well as its role in the future for climate policy. It will discuss and provide hands-on suggestions for transportation policy that will mitigate the greenhouse gas emissions from transport.