Fossil fuels, like oil, are running out and will be depleted in about 50 years. The Paris Agreement aims to reduce oil use by 2030 to fight air pollution. Many countries are working on using renewable energy for all their energy needs by 2050. Alternative fuels for vehicles are being researched, but they are not ready yet to replace oil. Oil affects the economies of all countries. In the future, economic growth and technology will be shaped by alternative fuels.