Sean wrote
X-rated Bob wrote
We make a mistake when we think that nature is harmonious and beautiful and in balance. It isn't. It's harsh and chaotic and competitive and except for mankind there is no forward planning. Wildlife populations rise and fall all the time. Too many cows and the pasture doesn't last and so the cow population diminishes. Until the pasture recovers and then populations go up again
But is that not balance? Has mankind not introduced an element of imbalance through our massive consumption of...well, just about everything?
Well a scientist might argue that the world is always in balance - or tending towards a state of balance. I don't want to use words like "trying" because these are just physical systems that we're talking about, not a concious being.
So I think we're asking the wrong question. What we should be trying to figure out - but I don't think it's easy - is how to maximise our species' chances of survival. Again we're the one species with a chance of extrapolating and planning.
Time scales are not constant either. Arguably (and I think probably) we have not yet depleted the resources we rely on. When we do then, like cows in a grazed out pasture, we have a problem.
I think we also need to understand that the earth and all it's systems are not in a settled, constant state that man is busy messing with lately. There have been ice ages in history and global warming. Sea levels have risen and dropped. One reminder of an earlier rise in sea levels is the Norfolk Broads.
There was the "Medieval Warm Period" from about mid 10th to mid 13th century. Unlikely to have been anything to do with CO2 emissions.
I think most people know about Krakatoa. Not so long before Krakatoa an in the same part of the world, Mount Tambora erupted in spectacular fashion in 1815. It ejected so much debris into the atmosphere that 1816 was known as "the year without a summer". Temperatures dropped, crops failed.
I'm not saying we shouldn't be concerned about conservation and pollution (y'all separate and recycle right?), but to get a handle on such matters I think we need to understand that earth/nature whatever you want to call it (any suggestions Don?) is a dynamic system or a set of dynamic systems.