Ok, sorry for the misplaced advice. Good luck with the school!
Who is your target market? For an adult to take nearly a year out of their life is a big ask. For whom do you expect it will be worth it? Staff/campaigners at existing non-profits? Existing bloggers/youtubers etc on related subjects? Anyone else? How large is the potential pool of students and how will you reach them and convince them that the course is worth the time and money?
I realise this is not a commercial project, but I think you would benefit from some start-up like thinking: who is this product for, what is the market, how do you reach customers, what is a minimum viable product from which to iterate? Apologies if you have already done that, but it wasn't communicated in your post.
One other factor, which I would class under demand factors: at each stage of the industrial revolution, you need to have enough demand for the primitive early version of your new technology, so that people will use it, iterate on it, and develop it.
You write "early Newcomen engines consumed ~45 pounds of coal per horsepower-hour; the most efficient engines of the late 1800s used less than one pound." But to get to those efficient engines, it had to be worth someone's while to use the very inefficient early Newcomen's engines, so that there was a vers... (read more)