What is the estimated peak population of humans that planet Earth can support?

The dynamics of earths resources to support human life is in inverse relationship to the dynamics of population growth.This law applies to the natural,social & economic laws to maintain a level of equilibrium at all times in short or long operational scale.However other factors like stability of population growth in year 2300 ,resource development,environment,life expectancy,sex ratio,fertility rate,illiteracy,dependency threshold age,government policies,social beliefs,natural calamities etc are in direct or inverse relationship with the dynamics of the level of peak population and resource utility.

Global Resource development is a minuscule in the dynamics of resource development and utility- there is both decline of one resource with its depletion but growth in alternative resource & sustainable development.

The planet earth can support fifty times the estimated peak population at 10.6 billion in the 21 st Century if only global 0.2% resource is development and utilized.

This however will still remain only as statistical long range futuristic estimate if other laws that operate in tandem with the dynamics of peak population and global resources is not taken in account.

The United Nations makes estimates of the world population in the 2002 revision report to 8.92 billion by 2050 but the alternatives can be as high as 10.6 billion or as low as 7.4 billion to 9.22 in 2075.

It has been estimates that 57 million a year on average is the growth of world population between 1950-200 and the average annual growth rate over the half century will be 0.77 % while by 2045-2050 it will be 0.33%.

The dynamics of equilibrium between development of resources by technological applications and the population by life expectancy,fertility rate,sex ratio,median age group of the dependency threshold ages and the productive ages are the attributes to the dynamics in both long range and short range estimates & changes.

Other attributes like regional differentiation in resources itself will permit some areas to support human life, while in other area it may fail .Regions with resources but not utilized will not support life.

Nature strives to maintain equilibrium by its natural laws and therefore it is very difficult to predict when the equilibrium is set off or when Nature will find its own equilibrium.