The Carbon Trust Company (CTC), a British non-profit firm encouraging companies to cut their carbon footprint, established a Carbon Reduction Label that indicates whether products are being produced by companies that are committed to reducing their carbon emissions.

Brands that want to ‘wear’ this label, quite easily recognisable on packaging, are required to calculate the exact footprint the product produces  based on a calculation developed by Carbon Trust, along with the UK Department for Environment, Food and Rural Affairs (Defra) and BSI British Standards.
More than 90 brands and 5,000 individual product lines have already shared such data, including the raw materials and packaging needed to produce their goods, all the way through to manufacturing, transportation, then sale to the end user, use and finally its disposal.  
The progress of the label is still in its early stages, but more and more companies are signing up and customers show they have a real interest in its developments.

More information: http://www.carbon-label.com/