Non-nuclear future means that instead of using nuclear energy, we would use other kinds of energy, like solar, wind, and water. Solar energy uses the sun's energy to generate electricity and is a clean energy source. Wind energy captures energy from the wind to generate power. And water energy uses the power of rivers and tides to generate electricity. These are all clean energy sources and don't produce any toxic waste or harm the environment in any way. A non-nuclear future would mean relying on these clean energy sources instead of nuclear energy to power our homes, businesses, and cities.