This Earth Day nugget came from our favorite commenter, Mara.
The short version is that Boston University Marketing Professor Remi Trudel found that volunteers were more likely to toss paper into the trash can if it was torn or crumpled up. They also found that cans were more likely to wind up in the garbage if they were dented. He credits the perceived usefulness of the recyclable item as a bias factor when we sort our recycling. Once we become aware of the bias, it takes less than a few seconds to correct the error.