The global population growth model for XXI century

The hyperbolic law for the Global population growth holds during the both last millennia with a pretty large precision. The paper presents the based on this law a model for saturated population growth. To the author's mind, this law is due to a constant value for the labor needed for the Human ecological niche doubling. The exponential dependence of the labor constant on the Global population is suggested as a possible inhibition mechanism in the XXI century. The scenarios with different exponents have been considered and the sevens degree has been shown to correspond to known forecasts for the Global population growth up to 2050. The steep growth of the labor constant in the nearest decades may influence greatly the Human lifestyle