Earth, like all ecosystems has a carrying capacity. Scientists estimated this figure at 40 billion and 2 billion. So, why the discrepancy? 2 billion is the estimate if we consume at the current rate we do. All the extras of modern life included, 2 billion is the carrying capacity. If we were to all strip down our needs to the bare essentials, food, water, shelter the capacity is 40 billion. At our current world population of around 6 billion we are over carrying capacity and eventually will run out of the resources to sustain our own existence and either die off, or dramatically reduce in numbers. I’m kinda depressed now.
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