One of the myriad issues with hydrogen as a clean energy source is infrastructure, as it's very expensive to move around and store an extremely explosive gas.
Honda announced Thursday that it is working to develop, remote telepresence robots, electric VTOLs for short-hop commutes, and a fuel-cell driven power generation system for the lunar surface.
It just became more realistic to use lasers to generate fusion energy — scientists have sparked a fusion explosion that produced much more energy than before.