Climate Change and Rising Sea Levels

Discussion in 'Environment & Conservation' started by Bowerbird, Feb 4, 2013.

  1. Taxcutter

    Taxcutter New Member

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    "They are also leading the world in energy storage..."

    Taxcutters adds:
    ...that doesn't work.
     
  2. Bowerbird

    Bowerbird Well-Known Member

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    Proof??

    BTW if someone is experimenting in grid storage would you rather it be your government?
     
  3. Taxcutter

    Taxcutter New Member

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    "Proof??"

    Taxcutters says:
    The absence of any discernable energy storage facilities (a tacit vote of "no confidence"), and that the Chinese are building coal-fired power plants as fast as they can.


    "...if someone is experimenting in grid storage would you rather it be your government?"

    Taxcutter says:
    Absolutely not!
     
  4. waltky

    waltky Well-Known Member

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    Rising Waters Prompt Marshallese To Ask US For Sanctuary...
    :omg:
    Bikini Islanders in desperate plea to USA as island home disappears due to climate change
    October 27, 2015 - BIKINI Islanders are petitioning the US government to let them live in the United States permanently as they say their new home since the 1940s is unlivable due to climate change.
     
  5. Poor Debater

    Poor Debater New Member

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    Sheesh. That's like being challenged to prove that mercury will rise in a thermometer tube if it gets hotter. Is there no end to the ignorance?
     
  6. jc456

    jc456 New Member

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    so you can't prove any sea level rise? So if you can't, how do you know it is? I believe that is the rationale to the question. But it's obvious that escapes you.
     
  7. Poor Debater

    Poor Debater New Member

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    Sure I can. Things expand when they get hotter. Go ahead and dispute that, and see how stupid you look.
     
  8. Bowerbird

    Bowerbird Well-Known Member

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    Ummm - we are measuring it now - thing is it will be a differing levels in differing parts of the world - see this thing called Gravity plays a part as well as ocean currents and temperature of the water

    [​IMG]
     
  9. sawyer

    sawyer Well-Known Member Past Donor

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    Sea levels have been rising since the last ice age ended and will continue to do so until the next ice age begins.
     
  10. jc456

    jc456 New Member

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    so how much does water expand when it gets hotter? If you had a cup of ice water in a cup and put it in a microwave and heated it, how much rise do you get? I've done this and nothing happened except the water got hotter.
     
  11. Korben

    Korben Banned

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    Not ice, ice is less dense then liquid water, that's why it floats.

    The melting of sea ice can not increase sea levels. This is because that ice is floating in the ocean already.
     
  12. Bowerbird

    Bowerbird Well-Known Member

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    Why? I mean the water has to come from somewhere so why is this happening?

    - - - Updated - - -

    Sea Ice may not increase ocean levels but land ice certainly will
     
  13. Korben

    Korben Banned

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    Maybe but only in very small increments. It's not like all land ice melting volume will automatically evenly equate to sea water volume.

    A melting glacier or snow cap is just as likely to form a lake then it is to drain to the ocean.

    A slightly warmer ocean surface temperature will increase evaporation.

    We humans need more liquid fresh water anyway.

    Even if the total volume of all the ice and snow on earth melted directly into the ocean the rise would be better measured in inches then feet.

    EDIT..

    Yeah it might suck for Florida and islands where the highest point is just a few feet above high tide. But nowhere near the claims of many of the GW fear mongers.
     
  14. jc456

    jc456 New Member

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    finally, someone on the left said it correctly. I'm picking myself off the floor, I didn't think that was at all possible.
     
  15. sawyer

    sawyer Well-Known Member Past Donor

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  16. Flyflicker

    Flyflicker New Member

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  17. sawyer

    sawyer Well-Known Member Past Donor

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  18. livefree

    livefree Banned

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    That's ignorant nonsense. You can't just make up your own 'facts' for the sake of your argument.

    Sea levels did rise after the end of the last period of heavy glaciation, starting almost twenty thousand years ago and largely stabilizing about seven thousand years ago, with only slightly more rise over the next few thousand years, but they largely stabilized between two and three thousand years ago and were only changing by a very small amount until recently when human caused global warming started causing thermal expansion of the ocean waters, and an accelerating discharge of polar ice melt water (Greenland & Antarctica) and glacial meltwaters into the oceans.

    [​IMG]

    The IPCC AR4 statement on historic sea level rise:

    “Yes, there is strong evidence that global sea level gradually rose in the 20th century and is currently rising at an increased rate, after a period of little change between AD 0 and AD 1900. Sea level is projected to rise at an even greater rate in this century.

    The two major causes of global sea level rise are thermal expansion of the oceans (water expands as it warms) and the loss of land-based ice due to increased melting…

    Global sea level rose by about 120 m during the several millennia that followed the end of the last ice age (approximately 21,000 years ago), and stabilised between 3,000 and 2,000 years ago. Sea level indicators suggest that global sea level did not change significantly from then until the late 19th century. The instrumental record of modern sea level change shows evidence for onset of sea level rise during the 19th century. Estimates for the 20th century show that global average sea level rose at a rate of about 1.7 mm per yr.
    ”


    So, sea levels weren't doing much until about the year 1900, but since then it has taken off like a bat out of hell. In other words, the rate increased -- which is what scientists/math geeks call "acceleration." The fact that sea levels were fairly stable over the past several thousand years, only highlights the dramatic nature of the current change in conditions to one of accelerating sea level rise. A key point in this matter relative to the issue of human caused global warming and its consequent climate changes is the difference in how fast sea levels are rising now compared to how fast they were rising for a couple of thousand years before the 19th century.

    Saying that "sea levels have been rising since the end of the last ice age" is about as relevant to this issue of current sea level rise as the fact that "People died of lung cancer long before there were cigarettes" is to the issue of smoking and health. Saying that without even mentioning the evidence about the last century’s dramatic increase in the rate is either ignorance on parade, or a deliberate lie.

    Here's a (smoothed) graph clearly showing the fairly recent acceleration in sea level increase. Which, BTW, is currently up to over 3.2 mm/year and still accelerating.

    [​IMG]

    Here's a more detailed recent article....

    Sea level rise accelerating faster than thought
    Science

    By Julia Rosen
    11 May 2015
     
  19. sawyer

    sawyer Well-Known Member Past Donor

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  20. livefree

    livefree Banned

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    You seem very confused. During the last period of heavy glaciation that lasted over a hundred thousand years and which started to end about twenty thousand years ago and finished ending about ten thousand years ago, sea levels were much lower because a lot of water was locked up in the ice sheets that covered a large part of North America, northern Europe, and northern Asia. The 'ice age' ended and the world moved into the current interglacial period, termed the Holocene....ten thousand years ago. The melting of the miles thick ice sheets and the resultant 100+ foot rise in sea levels mostly happened before the Holocene era and largely ended about seven thousand years ago, followed by only a small rise and fluation over the next few thousand years. Sea levels have been almost completely stable for several thousand years with, at most, only a very slight rate of yearly increase (1 or 2 mm/yr) until sea levels started to rise abruptly at an accelerating rate after the industrial revolution started the massive release of hundreds of billions of tonnes of fossil carbon dioxide into the atmosphere, raising CO2 levels by 43% so far (and still rising fast).
     
  21. sawyer

    sawyer Well-Known Member Past Donor

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    So we agree, sea level has risen as glacial ice melted and continues to do so
     
  22. lynnlynn

    lynnlynn New Member

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    Extinctions occur when sea levels drop.
     
  23. evince

    evince New Member

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    science has already weighted in


    GW is man effected
     
  24. livefree

    livefree Banned

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    No, we do not agree. I point the actual science.....you make up phony bullcrap

    I told you that the glacial ice formed during the last 'ice age' FINISHED melting off seven thousand years ago. The current melting of the mountain glaciers and the Greenland and Antarctica ice sheets HAS NOTHING WHATSOEVER to do with ending of the "ice age" many thousands of years ago, or the melting of the ice sheets that covered large parts of the northern hemisphere twenty thousand years ago.

    The current rise in sea levels is entirely due to the human caused global warming that is melting the previously stable mountain glaciers and polar ice sheets, and causing thermal expansion of the ocean waters. As the world scientific community is virtually unanimous in confirming.
     
  25. sawyer

    sawyer Well-Known Member Past Donor

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    So in your AGW cult opinion there is normal ice that is always supposed to be here ice age or not and then there is ice age ice that comes and goes and never the twain shall meet. Do you realize what a ludicrous statement this is?
     

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