I study human survival in a changing world by genetic and strategic adaptation so I've been working on figuring out this problem for about 6 months. This article is very interesting and shows a deep problem. I do think I have part of what may be a solution though, that would be economical and have side benefits. I'm almost done with the essay and will be posting it on Medium soon. I think what I will add to the discussion will be interesting. I'm trying to figure out a way to get a bit of a conversation with someone in Japan to see if I can confirm what I am thinking about. Any school teacher shold be able to answer my questions.