Open Knowledge (FSC OK)

We are living in the most explosive era of infrastructure expansion in human history. In the next 3 years, paved roads are projected to double in length in Asia's developing nations; in the next three decades, the total length of additional paved roads could approach 25 million kilometers worldwide�enough to encircle the planet more than 600 times. Nine-tenths of all new infrastructure is being built in developing nations, mainly in tropical and subtropical regions that contain Earth's most diverse ecosystems. In a world that is projected to have 2 billion vehicles by 2030, we need a better understanding of the impacts of roads and other infrastructure on our planet, societies, and economies�and more effective planning to ensure that the benefits of infrastructure outstrip its costs.