3. The collapse of the U.N . The U.N is the one organisation that can bring countries together to work together and work through divisions. But as I argued here the UN’s inability to effectively work beyond self interests could herald its demise as a body that can help maintain world peace.
2. Fundamental Islam. Does this one need to be explained.
1. Oil makes the world go round. It is vital for every countries economy and food production. Without it the world order would collapse. As resources diminish oil will drive countries to more and more desperate measures.