1. Vertical Farmer
With experts predicting the world's population will increase to around 9.1 billion by 2050, space will be at a premium in the future. Farms will start to spring up on rooftops and terraces, inside purpose-built skyscrapers, and anywhere else where there's room to grow. After sorting out a few teething problems (rearing livestock may prove to be a challenge), this profession will become an essential part of our survival.