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A thread on a forum wouldn't make a dent.
We are in an era of almost instantly redundant technology where marketeers promote the latest model incessantly. How long do you think it will be before the over consumption of resources wrecks the planet?
Famine is caused by politics, war and cli.ate change in that order. It is pointless debating the effects of climate change and what to do about it when it is far less of a problem than the other two. Sorting the divisive issues out will go a long way to resolving all our problems. However human nature flies in the face of resolutions. There are no grown ups in charge.
Bihar 1966, Maharashtra 1973, Iceland 1783, Sahel every so often since time began....one could list hundreds of really lethal famines caused by climate change in relatively stable political conditions. War is not a particularly efficient killer compared with disease and hunger.Politics and religion are a definite menace to humanity, however. The political imperative to "grow the economy" and religious demands to outbreed the worshippers of a lesser god, ensure that various bits of the world from time to time cannot sustain their human population. The zero-cost, zero-effort solution, of course, is to make fewer babies, but there's no industrial or political profit in that, so it won't happen.
Quote from: jeffreyH on 14/03/2017 21:03:58We are in an era of almost instantly redundant technology where marketeers promote the latest model incessantly. How long do you think it will be before the over consumption of resources wrecks the planet?The price of almost all materials is lower now than ever. This in spite of all that drivel a few years ago about peak oil.The reserves of extractable resources are also still going up as they have been ever since humans found the first rock that would split and leave a sharp edge. Soon we, humans, will start bringing asteroids into earth orbit where they will be mined for the materials they have in them in abbundance which are often scarce down here.This will lead to heavy industry being located in space where energy is plentiful and polution not a problem. The availibility of resources is going to be massively more than today for ever.
If it happened in a particular year it's called "weather" not "climate".- it's a very common mistake among those who seek to deny the existence of anthropogenic climate change.But otherwise you have a good point.
I was hoping to add some reference to the ecological consequences of the PETM global warming event, but it seems that the warming spike preceded the increase in CO2 level by some 2000 years, so I won't mention it here in case it upsets the faithful!
Quote from: Tim the Plumber on 16/03/2017 19:34:15Quote from: jeffreyH on 14/03/2017 21:03:58We are in an era of almost instantly redundant technology where marketeers promote the latest model incessantly. How long do you think it will be before the over consumption of resources wrecks the planet?The price of almost all materials is lower now than ever. This in spite of all that drivel a few years ago about peak oil.The reserves of extractable resources are also still going up as they have been ever since humans found the first rock that would split and leave a sharp edge. Soon we, humans, will start bringing asteroids into earth orbit where they will be mined for the materials they have in them in abbundance which are often scarce down here.This will lead to heavy industry being located in space where energy is plentiful and polution not a problem. The availibility of resources is going to be massively more than today for ever. That's a nice fantasy. How are we supposed to find petrochemicals in asteroids?
Well there is lots of carbon in them so processing it into petrol and plastic should not not be tricky given the free power of continious sunshine.Although why would we want to ship in stuff from space that is hugely abundant down here?
Quote from: Bored chemist on 16/03/2017 20:56:52If it happened in a particular year it's called "weather" not "climate".- it's a very common mistake among those who seek to deny the existence of anthropogenic climate change.But otherwise you have a good point.The Icelandic famine lasted several years and significantly altered the agronomy of Iceland. It was precipitated by a volcanic eruption whose effects were noticeable all over northern Europe. Now, being British, I consider weather to be a day-to-day variable phenomenon, but a trend that spans more than a season looks like something else. If it isn't climate, perhaps you'd care to suggest another name? I was hoping to add some reference to the ecological consequences of the PETM global warming event, but it seems that the warming spike preceded the increase in CO2 level by some 2000 years, so I won't mention it here in case it upsets the faithful!
Sushine in July and snow at Christmas are climate. Snow in July is weather, and the recent disappearance of winter snow is climate change. Vocanic ash clouds are in fact relevant because they may or may not be cognate with very large historic releases of CO2.
Quote from: alancalverd on 18/03/2017 15:45:44Sushine in July and snow at Christmas are climate. Snow in July is weather, and the recent disappearance of winter snow is climate change. Vocanic ash clouds are in fact relevant because they may or may not be cognate with very large historic releases of CO2.So, it's only most of the stuff that you introduced that's irrelevant.Nobody has claimed that CO2 is the only factor in climate change.
If there are other factors in play then there is no justification for any worry at all.
Quote from: Tim the Plumber on 18/03/2017 19:04:02If there are other factors in play then there is no justification for any worry at all. Those whose lives and livelihoods are being wrecked may disagree.