Communities from Colombia, Mongolia, South Africa and the US will demonstrate in London this week against some of the world's largest mining companies, which they say are devastating the health of people, widely polluting the environment and forcing communities to move. Anglo American, joint owners of the giant Cerrejón opencast coal mine in northern Colombia with BHP Billiton and Xstrata, will be accused at its annual meeting on Friday of jeopardising the health of the 13,000 people who live or work close to the operation that provides coal for power stations in Britain and Europe...A spokesman for Anglo American said: "Anglo American works tirelessly to ensure we observe the highest international standards, whether relating to human rights, environmental sensitivities and social issues, both in our wholly owned and jointly owned operations."