According to the laws of physics, the total quantity of mass and energy is fixed. Therefore, we cannot “create” new mass or energy, and we cannot “use up” the mass and energy that we already have.
But there is something else that we can do – we can invent, build, and use technology to increase our standard of living. For example, petroleum was worthless until someone with a brain invented a way to use it, at which point the petroleum became a valuable resource. Likewise, today we take rocks that used to be worthless, and turn them into computer chips that are worth trillions of dollars.
In recent years, the environmental movement in Germany has persuaded the country to shut down one third if its nuclear power generating capacity.