This year's Reith lecturer is Richard Rogers, one of the most influential British architects of our time. He has established himself and his practice at the forefront of today's architecture industry through such high-profile projects as the Pompidou Centre, the headquarters for Lloyds of London, the European Court of Human Rights in Strasbourg and the Millennium Dome in London. His series of lectures is entitled 'Sustainable City' and each lecture focuses on architecture's social role and the sustainable urban development of towns and cities through social and environmental responsibility. In his fourth Reith lecture, Richard Rogers turns his attention to London and examines some of the economic, social and ecological problems it currently faces. He argues that London offers every opportunity to create a cultured, balanced, and sustainable city but it urgently needs to adopt a new and sustainable approach that encourages its public life, discourages urban sprawl, and protects the environment for the future rather than being abandoned to the mercy of market forces. This, he believes, can only be realised by an overall authority for the capital.