The Food and Drink Federation (includes all big food manufactures ) publish a report on their progress to date on how their members have responded to their corporate Environmental ambitions They have updated actions All this is vital as it cascades down to growers and product specifications
http://www.fdf.org.uk/environment_progress_report.aspx
http://www.fdf.org.uk/publicgeneral/FDF_Environmental_report_2010.pdf