Oiy. Wishful thinking isn't going to help. Yes, there is untapped energy in the environment. We can't access all that's there, so it's not available to us.
Further, it takes money and time to develop new technologies. We're out of time and again, the people with the means and power to make those decisions care more about making money than they do about your "easy" solutions.
If you can ditch the magical thinking and get real about where we are, you might be able to salvage some kind of future for your family and a small extended network. It's too late to try to save the world.