CARBON IN THE BIOTA 297 



vulnerable — dependent as it is on economic growth, complex organization, and 

 the unstable psychology of human beings — to detrimental effects on its own 

 environment, health, and resource base. Industrial society is at present 

 committed to accelerating growth, made possible by a variety of positive 

 feedback effects. The character of this growth, combined with the difficulty of 

 decisions in a world of nations, implies that the growth of industrial society may 

 be expected to overshoot the capacity of the biosphere to support man and 

 tolerate his toxins. 38 ' 80,81 From this relation we will only predict increasing 

 effects on the mass and productivity of the biosphere in this decade and refer in 

 passing to the likelihood that the relation between these two vulnerable systems 

 is unstable. 



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