Making recycling goals concrete, such as limiting trash by 50%, leads to greater improvements than a general call to recycle more.

“Whereas when there was a very concrete plan and everyone knew what that concrete plan was, for instance, to place all bottles and cans into the recycle, not the trash or to limit the amount of trash by 50%, or to eliminate all recyclable items from the trash. So when they made it very concrete, exactly what the”