Is a population of 10 billion or even above actually sustainable on Earth?
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Yes and no. Really it depends on how we continue to use and allocate our resources.
For example, beef, pork, and other cattle animals are super energy intensive to grow and care for.
Almost Half of all grain grown in the world goes to feeding live stock. That is a lot of food going to feed other animals and not humans, and 1 pound of grain doesn’t equal 1 pound of meat on a cow, some is always wasted and lost.
If every one of those 10 billion humans wants to eat like the average American does right now, sustainability is going to be a problem, we eat too much meat.
But, if we were socially capable to changing meat from being the center piece of a meal to more being an addition or side, and scale back meat consumption, that will be much more sustainable.
Then again, with advancements being made in lab grown meats and all that kind of new technology, that’s hard to predict what exactly is going to happen there.
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