2nd Scenario
This is the first modification proposed by Jay
Forrester in his WORLD2 model.
The utilization of natural resources is reduced in 1970 to 25% of
their former value in order to extend their availability.
References:
- Cellier, F.E. (1991),
Continuous System Modeling, Springer-Verlag, New York, ISBN:
0-387-97502-0, 755p.
- Forrester, J.W. (1971),
World Dynamics, Pegasus Communications, 160p.
Simulate the model across 200 years, and plot the state
variables as well as the quality of life as functions of the
calendar years:

I had to artificially extend some of the tabular functions,
because our software complains when an interpolation function
attempts an extrapolation.
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