Climate change protesters are gathering in London to call for an overhaul of the world economy to help save the planet.They are hoping to raise awareness of their cause ahead of international climate change talks in Denmark in December. What makes this protest different is demonstrators are being moved by organisers around the British capital by text. One said: “ We got a text saying we should stick together and all move off to Trafalgar Square and so that is what we are doing.” Another said: “I’ve received a text message when we were in St James’s Square alerting me that there is an intricate plan.” The demonstration is expected to be the first large scale protest since the G20 demo earlier this year. Organisers say they expect hundreds of people to take part in a so called climate camp at a secret location. But at the moment they are playing a cat and mouse game with police. One activist, Kevin Smith said: “ Unfortunately in previous years the police have done everything in their power to try to stop the climate camp from happening.” The camp will be a challenge for London police after it faced heavy criticism for its handling of the G20 protest in April when a man died after being pushed by a policeman near the Bank of England. A spokesman for the Metropolitan Police said the force would adopt what is being described as “neighbourhood “ policing and for now the force says it is not expecting major disturbances.