The ecological disaster that is dolphin safe tuna.

By trying to help dolphins, groups like Greenpeace caused one of the worst marine ecological disasters of all time.

This post took 2^nd place in the Three Quarks Daily 2009 Prize in Science, with the comment

It’s a fine example of one of what I consider to be one of the most important lessons of science: that emotional moralization can lead to outcomes that are morally worse than those based on hard-headed analyses.