Hello everybody! I have been reading about the evolution of population growth since 1950 till now. It had many factors such as developement of technology, of medecine, ... Now i want to calculate the future population growth lets say for example for 2050. In those readings i found also those estimations but my problem is what type of models to they use to predict it? For example i know the IPAT model that describe the impact of population on environment. As there exist that one, do there exist one that can predict the future population?