Tesco and the Carbon Trust are to measure the carbon footprint of 30 Tesco own-brand products. Ranging from orange juice to light bulbs, the products will be assessed using the draft standard currently being developed by the Carbon Trust, Defra and BSI British Standards to measure the embodied greenhouse gas emissions from products and services. The 30 individual products fall into five categories:

• tomatoes
• potatoes
• orange juice
• light bulbs
• washing detergent