A recent University of Sheffield study used a life-cycle assessment approach to analyse the environmental cost for every 800g loaf of wholegrain bread manufactured in the UK.
The finding that every loaf of bread produces the equivalent of 0.589 kg of carbon dioxide, is based on analysis of the steps involved from growing the wheat to the delivery of the loaf to the consumer. The study reveals that over half the environment impact of the production process comes from cultivating the wheat used to make the break, with over 40% attributable to the use of ammonium nitrate fertilizer alone.
Click here to access the full study.