So far, these labels are an uncommon sight on fast-food menus. It is unlikely that the industry would voluntarily tag beef items with negative labels unless it’s required by regulation.

South African labels on food to show they’ve been produced in environmentally friendly ways are confusing and unhelpful.

Some of the CFL bulbs came with a sticker that said "Protect The Environment" while the others had a blank sticker. In some cases, the CFL bulb was priced at $1.50, while the incandescent bulb was 50 ...