Most consumers recognise the Carbon Trust's carbon footprint labelling, according to research by Walkers Crisps and Boots.

Walkers, which has put the label on the front of its standard crisps, said 78% of 1,063 customers it polled had heard of the scheme.

Sixty-eight per cent correctly said the label showed "the total carbon emitted during the lifecycle of the product from seed to store".

In addition, 70% said it made them more aware of the impact of the products and services they bought, and 68% would be more likely to buy a product that displayed the label on-pack.

Meanwhile, 65% of 1,029 Advantage Card holders surveyed by Boots - which displays the label at PoS for the Botanics range of shampoos - said they would be more likely to buy a product with a label indicating the supplier was working to reduce its carbon footprint.

Some 82% agreed they had a part to play in reducing carbon footprints.

"The reaction from consumers has been really encouraging," said Euan Murray, general manager of carbon footprinting at the Carbon Trust. "Research has shown that consumers say they are more likely to buy products from companies carrying this information. This shows the real commercial benefit that carbon labelling offers businesses."

The label shows how many grams of carbon were produced in making a product, and the manufacturer's commitment to cut this.