Paul Ehrlich wrote a book about its "bomb."
This value can be reached by combining the numerator and denominator of the dependency ratio. Its impact is combined with technology and affluence in the "I equals PAT" equation. Growth in this value is measured by the intrinsic rate of increase. Julian Simon won a bet about the future prices of five metals after engaging in a debate about whether an increase in this value was a good or bad thing. Although it eventually levels off, it is the only quantity that increases in the Demographic Transition Model. It can be viewed with a namesake pyramid, which is bottom-heavy for Ghana and top-heavy for Japan. Paul Ehrlich wrote a book about its "bomb." For 10 points, name this value which grows exponentially while food production grows linearly according to Thomas Malthus.
This value can be reached by combining the numerator and denominator of the dependency ratio.
world human population [or species population]