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Product design consultancy IDC (Industrial Design Consultancy) has produced a 'carbon footprint analysis' for many of this year's top Christmas gifts.

The analysis estimates the carbon dioxide emissions associated with all the stages from a product's life, such as the materials it is made from and the manufacturing processes used.

"Around 80% of the environmental impact of products is determined by the decisions made by the designers," said IDC's managing director Stephen Knowles. "While consumers can influence emissions with their buying decisions, the breakthroughs occur when marketers, designers and engineers work together."

Click here for a look at what Santa ought and ought not leave under the tree. As bad as you may have been this year, the proverbial lump of coal in your stocking means the environment is the one that will pay for your crimes.