Sir Richard Lambert, former Director General of the CBI 2006-2011, backs the campaign

'I endorse the aims of the Close the Door campaign for retailers to increase environmental and cost savings significantly by simply closing the door while heating or cooling their shops. The many stores that already do this send out a positive message that they care about the environment, the physical comfort of staff and customers and that their profit is not adversely affected by closing the door. The campaign takes a measured approach, using hard data from Cambridge University on the very significant saving in energy and carbon emissions gained from this simple measure. Closing the door is common sense and an easy win by any standards.'