So more people, eating more stuff, and richer stuff, and of course having an energy crisis at the same time, where we have to replace oil with other energy sources that will ultimately have to include some kinds of biofuels and bio-energy sources.
人口が増え 食べる量が増え 食生活も変化し それだけでなく同時にエネルギー危機を抱え 石油の代替エネルギーが必要で その中には生物燃料や生物エネルギーも 含まれることになる