There has been an in-depth discussion about the state of the human population, mostly the effect of the Earth's carrying capacity has upon the global population. The carrying capacity of an environment is the maximum population size that can be supported by the resources available in the environment. Once an environment has reached this maximum capacity in regards to the resources, the population growth oscillates around the environment's carrying capacity. Density-dependent regulations mostly occur when there is a limited about of food or other resources available to the population. This creates an environment where the population is forced to compete for the resources, or the environment is so dense with the population that the population
