The environmental movement has made huge progress over the last decades. Among others, it has raised awareness of challenges facing humanity, helped develop a critical mass of policies, and worked towards the implementation of many of these policies in collaboration with other stakeholders. Now, however, we are at a turning point in the history of the global environmental movement. In order to rise to challenges of the 21st century such as climate change and peak oil it will not be possible to do business as usual; a step change will be needed.