JOHN TIERNEY: How to save fish. “A global survey of more than 11,000 fisheries points to a profitable system to protect fisheries from collapsing. The bad news is that this system, called catch shares, is used in only 1 percent of the world’s fisheries and is still controversial, but the researchers hope the new evidence of its success will win over some opponents — a group has included both local fishermen and some environmentalists.”

If you want people to take care of things, give ’em property rights.