That's what's probably held us back the most.

I see three situations among the affluent that created a substantial delay in any "Green" products becoming a thing faster:

In the first case, someone making money hand over fist. They will let someone else take on the risk of research and development, and getting it off the ground. I'm happy with my stock in BP.

The second case, disgruntled owners of shares in companies forced to "be more green" in some way shape or form, like factories that need some post processing of their waste products, or that need to pay for their waste to be processed or disposed of. "The only thing this 'save the planet' nonsense has done, is cost me profits" (or whatever).

The last is driven by the numbers. There's no way to take the plan to go green and turn it into sales/profits. If someone were to propose any "Green" solution with a business plan that results in them making money, they're on board, but climate activists aren't necessarily good with business plans.

I mean, look at what happened with EVs, and solar. As much as I'm personally not a fan of musk, he was willing to take the risk to create Tesla. As soon as he started shipping hundreds of thousands of units at $90k+ each, within a few years, other companies had, at least, HEVs available. Solar panel research is starting to push out some pretty efficient panels, those panels are appearing on big retailers stores to offset costs. Solar companies are buying eachother out, it's a crazy market. The demand, not just from eco-conscious consumers, but from businesses, has exploded. The reason is that the return on investment of solar is very very clearly laid out. Spend some money putting them in, and you'll pay less in the long run on electricity. Any retailer with any future vision and roof space would be stupid not to put them in.

If you think about what's important to these capitalists, and adjust to how risk averse they are, this is all very clear as to why this has been moving so slowly. Fact is, if you can demonstrate that the tech works and show the difference, on paper, for operating costs, you'll easily have more orders than you can handle for whatever green product you can think of.

The main issue right now is getting physics to work with you, in your favor, to get the thing to work. There are some serious engineering and physics challenges when it comes to most green technologies that usually makes them "not economically viable" aka, they cost more than alternatives. Once we figure out how to make them cost less, you'll be amazed how fast things change.