Business Green: When is a target not a target? When it’s voluntary. The government-backed Waste and Resources Action Programme (WRAP) has today attempted to paint an upbeat picture of British supermarkets efforts to curb the use of plastic bags, highlighting figures that show the total number of bags used has fallen by 41 per cent since 2006. But while supermarkets have clearly made headway in slashing the number of bags handed out, a closer look at WRAP’s statistics reveals that efforts to …