Londoners turn blue for climate protestUpdated: 07:30, Sunday December 6, 2009 Thousands of people have painted themselves blue and marched through central London to call for action on climate change. Two days before a crucial climate summit begins in Copenhagen, protesters decked themselves out in blue facepaint, eyeshadow, wigs and stockings and converged on Big Ben on a grey Saturday afternoon. Organisers said 40,000 people took part while the Metropolitan Police put numbers at 20,000. Demand action until blue in the face,' one placard read, while others said quit dirty coal'. The peaceful protest stopped traffic as it moved from...