With the help of the CTSC Chair and ADEME, the International Centre for Research on Environment and Development (CIRED, CNRS) has recently carried out a study on these issues. It updates the results of a previous survey conducted in 2007 with a national sample representative of the whole population aged 15 and over, made up of 1060 people interviewed in front of their homes by the TNS Sofres network. That file sets out, on an exclusive basis, the results of this second survey on CCS, bringing them closer to a measure of the deployment of the theme in the national press.