The Problem Is Simple: Too Many People, Too Much Stuff
By Paul & Anne Ehrlich, Yale Environment 360.

Over some 60 million years, Homo sapiens has evolved into the dominant animal on the planet, acquiring binocular vision, upright posture, large brains, and -- most importantly -- language with syntax and that complex store of non-genetic information we call culture. However, in the last several centuries we've increasingly been using our relatively newly acquired power, especially our culturally evolved technologies, to deplete the natural capital of Earth -- in particular its deep, rich agricultural soils, its groundwater stored during ice ages, and its biodiversity -- as if there were no tomorrow.

The point, all too often ignored, is that this trend is being driven in large part by a combination of population growth and increasing per capita consumption, and it cannot be long continued without risking a collapse of our now-global civilization. Too many people -- and especially too many politicians and business executives -- are under the delusion that such a disastrous end to the modern human enterprise can be avoided by technological fixes that will allow the population and the economy to grow forever. But if we fail to bring population growth and over-consumption under control -- the number of people on Earth is expected to grow from 6.5 billion today to 9 billion by the second half of the 21st century -- then we will inhabit a planet where life becomes increasingly untenable because of two looming crises: global heating, and the degradation of the natural systems on which we all depend.

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