Human Population Growth
Current population projections are that there will be between 7 and 11 billion people on Earth by 2050. However, the carrying capacity of the earth may be smaller than this.
Estimates of global carrying capacity vary widely from several to hundreds of billions of people. The dominant standards of living (especially diet) have a large influence on estimates of global carrying capacity. Many scientists believe that the current world population already exceeds the carrying capacity if everyone were to have the current standards of living found in the United States.
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