System Dynamics (3)
"According to the United Nations, the world population will reach 7 billion people this week. No one really knows the exact date, but the announcement has sparked a round of commentary, most of it pessimistic. The doubling of the world’s population over the past 50 years is the most rapid in history. Demographers expect another 3 billion at least before global population finally peaks early in the next century and begins a gradual decline. Can we make it until then? Or will our overburdened spaceship earth suffer environmental collapse?"
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