Reform of the EU budget matters deeply for the pursuit of the low-carbon economy. For there is arguably no policy lever as important as the EU budget for setting the direction of EU action. However, it is perhaps its political value that is of most influence. For the way in which the EU spends its resources is the primary indicator of its political priorities and its institutional ability to organise their pursuit. This collection of viewpoints from diverse businesses and NGOs, social organisations and think tanks, addresses the political challenge of acting on these two priority areas of climate change and the reform of the EU budget. Movement on the EU budget will help unlock a low carbon Europe, while the continuing pressure for action on climate change can create the momentum required for budget reform.