The solution to overpopulation in the world is obvious -- we need to just stop feeding them. That's it. Stop sending our tax dollars to nations overseas that have exploding population numbers. That will do it. That will do it. What works for birds and works for deer also works for the Third World. By the way, there is no overpopulation in Western nations. We are not the problem, except in so far as we are sending food and medicine overseas to artificially prop up the excessive populations of nations in Africa and South America and Asia.