1. Climate Change 2013: The Physical Science Basis
http://www.ipcc.ch/report/ar5/wg1/
2. Audit of UK Greenhouse Gas emissions to 2020: Will current Government policies achieve significant reductions?
http://www.ucl.ac.uk/environment-institute/research/dispatches
3. Britain’s Building Stock—A Carbon Challenge
http://www.lcmp.eng.cam.ac.uk/wp-content/uploads/081012_kelly.pdf