Around 1977, a researcher noted the possibility of using titanium oxide to make ammonia in chemical abstracts, and then went to a discussion of the whole atmospheric circulation. One of the mysteries of the atmosphere was that it had an excess of ammonia, which they have never accounted for. When the researcher considered the amount of dunes and deserts in the world, he said, "This is it!" Where do we get titanic oxide from? Sands. So he calculated it. Three acres of desert under this system would supply as much as a commercial fertilizer plant. A while later, Mollison took over the idea and made his "Mollison's third world endless nitrogen fertilizer supply system".