An increasing proportion of greenhouse gas emissions is produced in urban areas in industrializing and developing countries. Recent research shows that per capita emissions in cities like Bangkok, Cape Town or Shanghai have already reached the level of cities like London, New York or Toronto....

We argue that a global carbon price is the only way to effectively tackle free riding in international climate policy, required to substantially reduce greenhouse gas emissions. We briefly review the main reasons behind the essential role of carbon pricing, address common misunderstandings and...

The outcome of the 28th UN Climate Change Conference shows that international co­operation remains possible despite today’s challenging geopolitical situation. Instead of the feared blockade, an agreement was reached for the first time - some three decades after the start of the COP process -...