The World Economic Forum (WEF) is a big club where some of the most powerful people in the world meet to talk about ways to make the world a better place. They are like a big think-tank and they discuss things like how to stop wars, how to make sure everyone has enough food and water, and how to keep the air and water clean. At the end of their meetings they make suggestions and plans that leaders from all over the world can use to help people.