Fifty-five Greenpeace volunteers scaled the walls of the Houses of Parliament and are now occupying the roof to call for a new style of politics in Britain, one capable of rising to meet the challenge of climate change.

Tomorrow MPs return from their summer break and the government’s own Committee on Climate Change will publish a progress report on UK carbon emissions. They make it clear that Britain is not doing enough to meet its commitments, and insist that a “step change” in emissions cuts is needed. With just 60 days go until the critical climate summit in Copenhagen - which faces a very real chance of failure as things stand - Britain has yet to show true commitment to making the process a success. We need politicians who are thinking about the next generation, not just the next election.

Follow @greenpeaceuk for the latest updates.