Guardian: When Rupert Dickinson, the chief executive of one of Britain’s biggest property firms, left his BlackBerry behind in London while on a business trip to Ireland, he simply ordered one of his staff to get on a plane and deliver the device to him. For Dickinson’s then head of sustainability, Tim Nicholson, the errand was much more than an executive indulgence: it embodied the contempt with which his boss treated his deep philosophical beliefs about climate change. In a significant …