Paper 1: Committed to Energy Efficiency by Philip Kirby - Director, Construction & Environment, British Gas plc, Property Division

Paper 2: What is the role of architects, engineers and clients in developing a sustainable approach to the use of energy in buildings? by Richard Parnaby, Chair of RIBA Energy Committee

Paper 3: Energy in Buildings: Beyond Politeness by Sandy Halliday, Director, Gaia Research

A transport debate that was really about demand outstripping supply, and not really being able to use price as the arbitrator. Ahead of the curve, we stumbled on the idea of carbon rationing at a time when no one else was talking about it and took it to the institutions as an idea they really should do something with.

Paper 1: What can architects and engineers do towards achieving a sustainable urban transport system?

Mark Whitby, Director, +Whitby

Paper 2: Urban transport - Going nowhere fast?

Lord Rodgers of Quarry Bank, Secretary of State for Transport 1976-79, and Director-General, Royal Institute of British Architects 1987-94

Paper 3: Urban transport - Going nowhere fast?

Charles Secrett, Executive Director, Friends of the Earth; Member, UK Round Table on Sustainable Development (Chair, Subgroup on sustainable transport sector)

The figure of four million new homes is, or at least before the credit crunch, bandied about so frequently that we have almost ceased to notice that it is a big number. Back in 1997, it seemed a very big number and we wondered where they would all go. This debate, as well as asking a number of penetrating questions, captured some of anxiety of that time.

Paper 1: An Architect’s View

Edward Cullinan CBE RA RIBA HonFRIAS, Edward Cullinan Architects

Paper 2: An Engineer’s View

Sir Jack Zunz FEng FICE, former Chairman, Ove Arup Partnership

Paper 3: A Planner’s View

Professor Peter Hall, University College London