Oceans May Be Out of Fish by 2050 UN warns of doomsday unless fishing industry changes By Kevin Spak, Newser Staff Suggested by Disillusioned Posted May 18, 2010 11:36 AM CDT 46 comments Comments A man drags a frozen tuna he purchased in the morning auction at Tsukiji fish market in Tokyo, Japan, in this file photo. (AP Photo/Koji Sasahara) (Newser) – The world's oceans will run out of fish by 2050 at the rate fisherman are currently scooping them up, UN experts said yesterday, urging governments to impose limits that would allow populations to recover. “If the various estimates we have received come true, then … 40 years down the line, we, effectively, are out of fish,” the head of the UN's green economy initiative tells the AFP. The head of the UN's Environment Program says he's confident the world will change course. “Almost 30 countries now have engaged with us directly, and there are many others revising their policies,” he said. But environmentalists were dealt a blow earlier this year, when a worldwide ban on bluefin tuna was defeated.