Mr. Ciar?n O'Connor:

It varies. For instance, in Scandinavia more than 90% of houses are built with timber because that is the most economic way to build, but also it works from an insulation point of view and in other ways. What is trickier here is that we tend to just use timber for the inside of the building, but the outer finish is conventional. When we do that, we have given away half the gain, because we are adding a finish to the structure that is much higher in carbon. That is where there is a wider context in terms of trying to put it into perspective. As a nation, we need to understand that it is not just a case of saying that is for somebody else to do because I do not like houses that look like that and I want this.

We need to address that and I believe carbon considerations will help in that regard.