Can the Earth feed 9 billion people? Predicting population growth and its impact on food availability

In this study, I have decided to use two formulas for predicting world population growth: one based on an exponential growth model (Hathout, 2013) and the other on a logistic growth model (Hillen, 2016). In this study, I have decided to use two formulas for predicting world population growth: one based on an exponential growth model (Hathout, 2013) and the other on a logistic growth model (Hillen, 2016). I will compare my projections with the UN (2015) forecast that world population is