The world is a busy place. And, according to the latest UN projections, it's only going to get busier. The world population is set to hit 7.2 billion by next month and estimated to reach nearly 11 billion by 2100, which will clearly put a strain on the already limited amount of natural resources the planet has left. That, increased pollution, more intense global warming, and the fact that there will be more people around getting up in your personal space means the future doesn't look very bright.
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