Solving the world’s environmental problems could take a significant toll on economic growth if only today’s technologies are available. We know that innovation – the creation and adoption of new cleaner technologies and know-how – provides a means to achieve local and global...

Recent advances in the scientific understanding of urban traffic congestion have only strengthened the already solid case for congestion charges as an element of a successful urban transport policy. But examples of real-world congestion charging systems remain few and far between. What can be...