View Poll Results: The drought is caused by

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  • GLOBAL WARMING

    20 21.51%
  • NORMAL EARTH WEATHER CYCLES

    73 78.49%
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Thread: is the drought caused by..........

  1. #11
    JDNSW's Avatar
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    Quote Originally Posted by waynep View Post
    it's actually a misnomer to call it "global warming", This leads people to think the only effect is the whole world is getting "hotter".

    it's climate pattern change. ( ie longer droughts, larger floods and more frequent severe weather events )

    the more worrying thing IMHO however is the acidification of the oceans. This has the potential to seriously harm the levels of plankton in the oceans , which is at the bottom level of our food chain.
    There are a variety of effects likely - the latest one suggested is a new northern hemisphere ice age resulting paradoxically from the loss of the Greenland ice cap. Probably the fastest changes will result from changes in ocean currents, and these are rather unpredictable (the changes that is).

    I have difficulties with the predictions of longer droughts, more frequent severe weather events etc, for several reasons. One is that the weather records are over such a short period relative to the natural variability that we have no way of knowing what the current variability really is, so these forecasts are entirely from modelling, and since the data does not exist to test the current frequency of these problems, it is a bit of a stretch to take note of predicted changes.

    One point that is worth noting is that the predicted warming for this century is expected to be less than the temperatures reached in the Mediaeval warm period, a fact that a lot of people seem to ignore. Of course we now have far more people in the world than then, and far too many of them living in very vulnerable locations - many of which simply did not exist a thousand years ago (Much of the densely populated parts of SE Asia for example are land that has built up from sediment in that period - and is very susceptible to flooding).

    It is "Global" in the sense that to the extent that it is caused by the emission of greenhouse gases, the problem is worldwide, not restricted to where the emissions came from. Because of this, although Australia will be affected by it, we can have no significant effect on it, except perhaps indirectly, and even that would be minimal - Australia has well under 1% of the world's population, and even though Australian emissions per capita are up among the highest (High living standards plus low energy costs and long distances) - if reduced by 50% or even 100%, the effect would be still be insignificant, being swamped by those countries with large populations, particularly those with high per capita emissions (US for example) or those with rapidly rising emissions (China, India for example).

    John
    John

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  2. #12
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    Quote Originally Posted by JDNSW View Post
    although Australia will be affected by it, we can have no significant effect on it, except perhaps indirectly, and even that would be minimal - Australia has well under 1% of the world's population, and even though Australian emissions per capita are up among the highest (High living standards plus low energy costs and long distances) - if reduced by 50% or even 100%, the effect would be still be insignificant, being swamped by those countries with large populations, particularly those with high per capita emissions (US for example) or those with rapidly rising emissions (China, India for example).

    John
    Yep,agree with that.
    It is a problem for me though if the argument that follows is "we'll be right, we can't make much difference, it's the Chinese and Indians need to change their ways, so lets not try to change ourselves at all"

    Or maybe we could divert the funds going our own greenhouse emmisions into educating and assisting the Chinese and Indians ... I dunno.
    Last edited by waynep; 22nd October 2007 at 09:13 AM.

  3. #13
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    According to my ex I am responsible for it

    and the demise of the dinosuars

    and world war two

    the loss of Neandertals

    her sanity

    taxes.

    Humans should do what we do much better as we waste way to much, but have we caused global warming I feel that is a load of cods wallop.

    (hey moderators is cods wallop ok? as it's a colloquialism not a swear word)

    Blythe
    Last edited by blitz; 22nd October 2007 at 09:42 AM. Reason: spelling mistake

  4. #14
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    the drought may well be caused by a lack of fresh water

    GQ

  5. #15
    olbod Guest
    Yep, thats right.
    The draught is caused by a lack of rain.
    Pure and simple.

  6. #16
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    Quote Originally Posted by olbod View Post
    Yep, thats right.
    The draught is caused by a lack of rain.
    Pure and simple.
    so light annoying breezes inside the house are caused by lack of rain too ? hmmmm........

  7. #17
    olbod Guest
    Quote Originally Posted by waynep View Post
    so light annoying breezes inside the house are caused by lack of rain too ? hmmmm........

    Nuh, lack of a good wind.
    People that work outdoors could help the environment
    by having a baked bean sandwich lunch, regularly.

  8. #18
    JDNSW's Avatar
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    Quote Originally Posted by waynep View Post
    Yep,agree with that.
    It is a problem for me though if the argument that follows is "we'll be right, we can't make much difference, it's the Chinese and Indians need to change their ways, so lets not try to change ourselves at all"

    Or maybe we could divert the funds going our own greenhouse emmisions into educating and assisting the Chinese and Indians ... I dunno.
    We won't be right, any more than anyone else will be - but if you think changing your emission habits is going to make a difference you are kidding yourself. Perhaps the most productive thing we can do is to keep our population low, and certainly we should on a personal basis try and reduce emissions, although as I said, don't expect it to make a difference*.

    Developing low or zero emission technology to pass on to the major producers would also be productive, but for this to happen here the price of energy would have to rise dramatically. It probably will anyway, as China and India's appetite for energy increases, and this will make for an automatic reduction in emission growth.

    *One of the things that concerns me about the majority of the younger generation is the complete absence of concern about waste of resources, but this is probably not the place to go into that, although if this concern existed it would go a long way toward reducing emissions.

    John
    John

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  9. #19
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    Johns (JDNSW) point is the core of the problem.

    Population:

    Australia = 21,000,000 (CO output mature)
    China = 1,300,000,000 (CO output growing)
    India = 1,100,000,000 (CO output growing)
    Asia other = 900,000,000 (CO output expotential)

    3.5 billion population are yet to get to the level of consumerism we 'enjoy'.

    I believe our stats show that there is a motor vehicle (private/business/commercial use) for every Aussie.
    Asia is a fraction of this.

    3.5 billion motor vehicles; when this market matures, (as in gets to the levels of consumerism we 'enjoy'), means many things.

    1). Asia will be a massive parking lot, cars idling away for hours, going nowhere fast, or even slow.
    2). Massive amounts of gas to atmosphere.
    3). Massive consumption of fuel, which is currently fossil based.
    4). Degradation of landscape to supply to the populus, more roads.....

    As we already know, as in those who commute in big cities, cars are becoming a slower way to commute, than other forms, like riding a pushbike, or walking....

    Our 21,000,000, by cutting our consumption of fossil fuel burning/consumption will do bugger-all in the big picture.

    GQ

  10. #20
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    is the drought caused by.

    I have read a report from scientists that Mars surface temperature is increasing too! Is that caused by little green men racing around in their polluting space ships?

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