Killers in Theory

Not in fact.

"Scientists are attacking the global campaign to ban plastic shopping bags, saying the activists' claim that the modern conveniences are responsible for the deaths of 100,000 animals and one million seabirds is based on a "typo" in a 2002 report and there is no scientific evidence showing the bags pose a direct threat to marine mammals."

"The figure was derived from a 1987 Canadian study in Newfoundland that found 100,000 marine mammals, including birds, killed by discarded fishing nets."