London is a world city that faces many challenges in the context of climate change and a growing urban population. Although there is evidence that London's environmental quality is increasing, a growing urban population is putting pressure on land and resources. The mayor of London has a statutory duty to develop a strategic vision of how to address issues such as energy, water, and waste, and London's general approach to facing its challenges has been to involve key stakeholders from the business and community sectors in the environmental management of the city. A major focus of (re)development over the coming decades is East London, especially the Olympic Park and Thames Gateway developments.