If you're really concerned and want to make a difference, the first step is educating yourself. Do some basic research on what warms the earth, then do the math on cars and motorcycles. Personal transportation makes up about 7% of the world's greenhouse gasses and falling - shifting any percentage that to EV and Hydrogen does absolutely nothing to reduce that today because producing electricity and carbon on a global basis has a simpler carbon footprint to petro fuels.
When you're done understanding cars, look at livestock. They make about 2.5x more greenhouse gas, almost 19% of the global load and growing -- it will be 30% in another 20 years. To make matters worse, livestock make about 1/3 methane, which warms the earth 20x faster than automobile emissions.
What's my point? If you're going to be a crusader, find a crusade that matters. There is no path to reducing global warming by reducing ICE useage. Changign the mix in favor of existing EV or H2 technology does not achieve that end. A shift to other renewable resources (hydro, solar) might improve it a little, but not as much as killing off a single cow.
