廚餘
Food waste was identified as a problem in the UK as early as World War I. Combating food waste was one of the initial goals of the Women's Institutes (WI), set up in 1915, and remains a subject of their campaigns. Rationing was adopted during World War I, although it was voluntary, from February 1917; it was only between December 1917 and February 1918 that rationing began, in stages, to be made compulsory. As well, there is no evidence to suggest that by 1918 fines were imposed on either individuals or businesses for wasting food. Meanwhile, in the United States (where shortages were hardly comparable), legislators considered laws restricting the distribution of food in order to cut waste, breaches of which might be punishable by fines or imprisonment.