The Intergovernmental Panel on Climate Change (IPCC) reported that to keep the rise in global temperatures below 1.5C this century, emissions of carbon dioxide would have to be cut by 45% by 2030. Now it seems, there's a growing consensus that the next 18 months will be critical in dealing with the global heating crisis.

CIHT recently launched its Climate Change Pledge.

Climate change requires us to challenge conventional thinking and challenge orthodoxies. The interview is with Nick Tyler CBE, the Chadwick Professor of Civil Engineering at UCL.

Included in the interview you can hear the latest on the Person-Environment-Activity Research Laboratory – which is being built now – that has an aim of helping to design the next generation city infrastructure.