Earth system(s) and environmental problem(s)

(Masuda's original diagram, influenced by the idea of "the total system of the earth" by Shimazu (Shimazu et al. 1975).)

Reference

• SHIMAZU Yasuo, GAMBO Kanzaburo & TAKANO Kenzo, 1975: Sizen no Suuri (Mathematics of Nature), Chikuma-Shobo.