PepsiCo introduce i-crop

A sustainable water protocol for managing embedded water in their products. It pays particular attention to potatoes for Walkers crisps. It will be the first of many protocols affecting growers. Should there be an Assured Produce protocol for water ? (and carbon ? )
http://www.pepsico.co.uk/news-and-comment/pepsico-uks-first-sustainable-farming-report-published