1. Carbon Trust (2006a) The carbon emissions generated in all that we consume, p 28. Available at http://www.carbontrust.co.uk
2. Carbon Trust (2006b) Carbon footprints in the supply chain: the next step for business, p 24. Available at http://www.carbontrust.co.uk
3. Carbon Trust (2007) Carbon footprint measurement methodology, version 1.3, 15 March 2007, p 26. The Carbon Trust
4. Carbon Trust (2008a) Code of good practice for product greenhouse gas emissions and reduction claims, p 24. Available at http://www.carbontrust.co.uk
5. Carbon Trust (2008b) Product carbon footprinting: the new business opportunity, including case studies, p 36. Available at http://www.carbontrust.co.uk