Guardian: Political pressure is mounting to make businesses pay for the damage they cause to the environment, and the latest UN study assessing the impact of the world’s biggest companies is almost certainly the first stage in a concerted campaign to calculate how much damage is caused, what it is worth and ultimately how it can be stopped. Another report due later this year, The Economics of Ecosystems and Biodiversity, led by the economist and UN special adviser Pavan Sukhdev, will be another …