Environmental auditing of activities and companies, through schemes such as the European Union's Environmental Management and Auditing Scheme, and full life-cycle analysis of products can help to raise awareness, among both producers and consumers, of the environmental implications of their actions. Such schemes should be made mandatory, so far as possible, to ensure comprehensive coverage and establish a "level playing field", and extended to cover health implications.An increasing number of corporate buyers are demanding comprehensive environmental and social information on the products or materials they purchase - a practice that has become known as supply-chain auditing.