"... the impacts of population growth, the second law of thermodynamics, ecosystem services, total fertility rates, how the climate works, externalities, exponential growth, the food system, the biology of race, nuclear winter, the limits to growth, Federalism, the history of fascism, or many other topics of critical importance to modern citizens."
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Quote from this article by Paul and Anne Ehrlich / November, 2016.
Currently just a framework map (January 2017).