I've often wondered if Hydrogen could be used, we use it for rockets I believe.
Where would you get the hydrogen? Unlike kerosene, hydrogen isn't a fuel that can be refined or separated from a cheap, abundant, existing raw material. It has to be created using other energy. Currently, the cheapest way to make it is to reform natural gas using steam (very energy intensive). Once Biden removes natural gas from the equation, you are left with electrolysis of water (very energy intensive). And then you would have to store the hydrogen in tanks under high pressure just to burn in turbines designed to run on kerosene. Is it doable? Sure. But it would easily increase the cost of flying tenfold. And on top of that, it would require considerably more energy to utilize hydrogen than it took to use aviation fuel.
There is a place for hydrogen in our energy future, but not as a combustible fuel. Think of it instead as a means to store electricity. And you wouldn't power an aircraft with electricity.
The reason we use oil, gas, and coal is because they provide the most value per dollar spent. This is the invisible hand at its finest. And liberals hate it more than anything.
