The issue focused on the possible role of Malthusian problems in the present and future. (In the list of question-and-answer questions, the fact that the author is a naturalist is not mentioned).

Yasunobu Kato, "Oseikei to Aokigahara: Rokkasho to Fumagatake-gashou" (Rokkasho to Aokigahara: Hikikomori to Fum