Leading environmental and development organisations have joined forces to demand action on climate change. The groups say that unless action is taken, the UN millennium development goals - which aim to half global poverty by 2015 - will be impossible to achieve, and that human development achievements could even be reversed. The alliance - which includes Oxfam, Christian Aid, ActionAid, Greenpeace, Friends of the Earth and 15 other organisations - launched a report 20 October in London outlining the steps it says must be taken.