Growth and equilibrium stationary state

In nature, many processes follow this simple law (2.143), which expresses that the change of a quantity N (for example population, mass, energy) is proportional to the quantity itself In other words, exponential growth occurs when some quantity regularly increases by a fixed percentage. The proportionality coefficient X characterizes the process (biology, chemistry, physics, economy, etc.) as follows  

We see that dN / dt denotes a flux F according to the sign, it could result in a growth (positive sign) or decline (negative sign). It is clearly seen that a negative flux will end with N t) = 0 with t — when there is no permanent source (positive flux) of N to maintain a pool of this quantity. 

Another much more serious problem than resource limitation is the waste accumulation in the climate system. The challenge is clear to adopt the natural model of cycling matter. Each produced good (from nature-extracted matter) must be recycled to the chemical status of the primary compound or (compromising) transferred to a pool without climate impact. 

Another message to economists and politicians is that exponential growth is far away from any idea of a sustainable society. Growth leads to crisis financial, pollution and supply. A sustainable society is characterized by equilibrium  

This does not exclude growth but growth (production consumption assumed ) must be compensated by removal. Self-limitation of this system is naturally given if waste cannot be turned back into products. 

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