Forgive me if this has already been answered, but I believe there are at least two such instances. First, Easter Island ran out of pretty much all their resources, causing a fairly catastrophic societal collaps. Second, the Mayas (I believe....it may have been another group) engaged in massive deforestation, which as I understand it (my knowledge of Meso- and South American archaeology is not very good, I will admit) contributed to their demise.Cuddles said:...those previous collapses generally had little or nothing to do with running out of basic resources.
The administrative hurddles that would need to be cleared are tremendous. The technology is mature, for hte most part (new technologies are constantly being devised, but we can build Davis-Bessy type plants right now), but the permitting is a NIGHTMARE. I've been involved in preliminary stages of some of this, years ago, and it's only gotten worse. Second, we don't have a good way to deal with the waste. Right now, it's largely stored at the reactors, as I understand it.Nuclear power hasn't gone anywhere...
The Japanese earthquake didn't help. A lot of people are running scared of nuclear now, ignoring the fact that there are fairly large areas where earthquakes of that magnitude are essentially impossible.
This is a matter of historical record--this question CAN be answered. A good place to start looking is the Dutch tulip economic collaps. Obviously the country survived; the question is how.So? Bubbles mean you don't have monotonically increasing growth. I have yet to see anything connecting that to the claimed impending collapse.
The geologic record does not include, to the best of my knowledge, any instances of climate change alone being sufficient to trigger a mass extinction (the only statistically viable option for "collapse" in the biosphere). Attempts to pin mass extinctions on climate change are abundant, but all suffer from the same flaw: they ignore everything else going on at the time, and start with the presumption that climate change is the answer. Examinations of the Permo-Triassic extinction greatly suffer from this, for example. People have been trying for years to prove climate did it, but the simple fact is that there are so many confounding factors surrounding those two extinction pulses that to say any one did it is simply insane. Attempts to blame the K/Pg mass extinction on climate change alone have taken on a ring of despiration. And that's not getting into the Late Cretaceous Ocean Anoxic Events, or the Eocene Climate Optimum, or OIS 11. Climate change can, of course, cause LOCAL extinctions--the Neotoma midden record of the Desert Southwest in the USA demonstrates this quite well, for example, and obviously anywhere that gets flooded will see an extinction of local terrestrial species (and almost certainly an increase in local shallow-marine species). So I'm not saying climate change isn't bad; I'm just saying it's not bad enough, by itself, to cause an ecological collapse.macdoc said:Is climate change on it's own ( acknowledging the knock on effects in disease, food issues and the ocean) enough to trigger a widescale collapse.
Recently, the Proceedings of the Royal Society published a paper convincingly arguing that humans, not climate, were the deciding factor in the mass extinction that started 10k or so years ago. This is hardly a new concept, but their argument is both quite convincing and quite useful for analyzing previous extinctions. The full implications of this haven't been explored (no time to do so).
Also, I must point out that we're NOT just facing climate change. Climate change gets all the press, but it's one of a myriad of ecological factors involved in the current mass extinction. The transport of organisms (ie, invasive species) is a major factor, as is habitat fragmentation and the increase in scavanging behavior (roadkill is easy to get to, if you don't become roadkill). The rise of new biomes is another factor--we simply don't understand the impact our cities and farms will have on the environment, not fully and not in terms of evolutionary timescales. NO organism has EVER adapted to high-rise buildings before, for the very obvious reason that high-rise buildings never existed before. Bioenginering is another factor--we are creating new species (either we're in the early stages of it or we've done it, depending on your point of view), and that's going to play a role.
Climate change is complex enough, but to fully grasp the picture of what's going on you need to understand that climate change is only one aspect of this ecological shift.