With this calculator 50 year scenarios for zero growth in global consumption can be calculated for various assumptions concerning the decline (expressed in percent per annum) in the per capita consumption in the industrialized countries over the period.
      The calculator shows which growth rate in per capita consumption (in % p.a.) must be maintained in the developing countries to achieve this goal. .
      It further shows the per capita consumption at the end of the period in percent of the present per capita consumption as well as the ratio between the per capita consumption in the industrialized countries over that of the developing countries at that time.
      Finally it shows how many percent of the total global consumption the industrialized respectively the developing countroes will stand for at the end of the period.

      The calculations are based on the following assumptions:
* Population in the industrial countries is 1.2 billion now and will be the same in 50 years.
* Population in the developing countries is growing 60% over the period, from now 4.8 billion to 7.68 billion - bringing global population up to about 8.9 billion.
* The present per capita consumption in the industrial countries is 10 times as high as in the developing countries.
      See an explanation of the math used.