The UN is one of the most inefficient methods of peacekeeping imaginable. Rather than be an example of world democracy, the UN is instead just ruled by the five member security council. Because of this the organization is only ever going to lean one way. Instead, more traditional methods of alliance between individual nations should be used to solve world problems. Non-profit organizations also can take the place of the UN when dealing with non-conflict based problems.
There is, at this time, no better way to tackle burning issues of the world than by involving the United Nations. This is because the United Nations is made up of many different countries, which gives it the ability to make a difference. The UN is also very well funding, and this also allows them to tackle big issues.