by KaiserJeep » Mon 03 Nov 2014, 08:56:07
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The only possible solutions, long term, are either a population limited by the environment (in the case of humans, disease and starvation), or enforced government control over procreation, deciding who can reproduce and when. I'm not keen on the government option, but I'm less thrilled about the alternative.
Ridiculous. The doomsday scenario and the periodic population expansion and collapse are indeed the results of a species that places no constraints on it's own growth. However, the population statistics of developed nations show that population stabilizes long before collapse - for example, without uncontrolled immigration from less developed countries to the South of us, the USA would have a falling population today. Overshoot is the result of a culture that has had less than two generations of modern medicine and less than two generations of productive mechanized agriculture - i.e. a healthy environment and a plentitude of food, and a strong tradition of large families to overcome a chillingly high infant mortality rate.
The present World population overshoot is the result of less developed nations in China, India, Africa, and the Middle East enjoying modern medicine and modern food production. The stable populations in Western Europe, North America, and Eastern Europe all demonstrate that had we just had another century or so, the populations in the problem countries would also stabilize. However, we are already decades into overshoot - I remember thinking as a schoolboy as the World crossed the 3 Billion mark in 1961 that UN Secretary U Thant would have to do something to save us. Nobody did anything.
Later on I decided that the overshoot actually began around 1800 AD when the World population exceeded 1 Billion. That was about the time that the Reverend Thomas Robert Malthus wrote
An Essay on the Principle of Population. Recall that at that time in Western countries, only churchmen and a very few wealthy people had formal educations. Only a few of these educated people considered themselves "Scientists", and were prepared to understand the doom that Malthus described. Those "Scientists" failed to do so, and in so doing, doomed the human race to death from Pestilence, War, Famine, and Death (aka the Four Horsemen of the Apocalypse).
Note that we do not have to accept this fate, at least as a species. The obvious and most desirable alternative is to live somewhere else, in an environment without constraints of limited food, water, energy, and living space. That means leaving the planet, and living in Space. The crash will happen on the planet, the only question is whether the range of the human race is limited to that single planet when it becomes a place so damaged in the struggle of 7.2B or 10B or 15B people that it will no longer support life.
Understand that the crash of the Ecosystem has already begun, and is accelerating. Plant and animal species are going extinct today at rates that exceed the five other "mass extinction" events recorded in the fossil record. For example, the "dinosaur killer" Chicxulub asteroid that crashed 62M years ago on the Yucatan peninsula in Mexico produced an apocalyptic event where 90% of all species went extinct over an approximately 1300-year period.
The human population overshoot is destroying our ecosphere
faster than that. There are many implications, but prime among them must be the understanding that we cannot save ourselves by continuing to live here - the damage is done, the Ecosystem is doomed. It might take a millenium by purely natural causes, it might be a nuclear war in the space of a single afternoon, but there is no saving the World we know and the humans on it.
We save our species only by leaving. There may be a few generations of human life possible on the planet, but the planet itself is doomed, there is no fixing the damage. After a geologic age, it will recover from the human apocalypse.