Possible future natural disasters?

Two possible natural disasters in the future are floods and droughts. As the Earth continues to get warmer, some areas of the world will be very dry whereas other areas will be very wet. Major droughts would be caused by the severe lack of precipitation due to moisture being contained in other areas. Major floods would be caused by too much moisture as well as rising sea levels. As major glaciers of the world melt, the oceans are rising, and they will start to engulf major cities, such as Miami. Droughts will cause a shortage of food whereas floods will destroy a lot of property.