According to NAS it was WARMER in Roman Times

Discussion in 'Environment' started by westwall, May 21, 2010.

  1. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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  2. Old Rocks
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    Old Rocks Diamond Member

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    Of course the part in red is pure bullshit. Pretty much like the rest of the editorial. Note that they did not give a link or address of the NAS study.

    EDITORIAL: Nero was hotter than Al Gore - Washington Times

    The planet has never been warmer than it is right now, if you believe what global warming alarmists have to say. Mankind's selfishness in producing "excessive" amounts of carbon dioxide has set us on a path toward global cataclysm, they insist. The problem with this tale is that it neither fits with the historical record nor with a growing body of scientific evidence.

    The reason that they do not tell you the address of the NAS article is readily apparent when you look up the original article. For what the article says is that this was a local, as in Iceland and Europe, phenomonem related to the ocean currents.

    By the way, Westwall, thank you. I had not seen this article before, and it is an interesting article.


    Two millennia of North Atlantic seasonality and implications for Norse colonies ? PNAS

    Seasonality of temperature, the difference between summer and winter temperatures, is one of the most important characteristics of climate (1) playing a significant role in the distribution of plants and animals and in determining the surface characteristics of the ocean (2). The reconstruction of seasonality on a regional scale is vital for gaining a better understanding of past climate dynamics (3, 4) including the extent and rate of change of natural climate variability (5). Research focused on regions that are sensitive to climate change and that influence large-scale atmospheric and oceanic circulation patterns is particularly significant in further enhancing our understanding of past climate. One such region, the north Icelandic shelf, is particularly sensitive to changes in North Atlantic climate regimes (6, 7) because it is situated between opposing atmospheric/oceanic fronts (Fig. 1). Icelandic climate is dominantly controlled by convection strength of the Atlantic and Arctic Ocean currents that are in turn forced by prevailing atmospheric conditions and the advection of water masses in the North Atlantic region influenced by local hydrographic conditions (8). Although it borders the Arctic Circle, Iceland experiences a cool temperate maritime climate because of the influence of the Irminger Current from the south, an offshoot of the warm North Atlantic Current (Fig. 1). However, Iceland’s coastal waters are also chilled by the East Icelandic Current that branches off the East Greenland Current that carries cool Polar/Arctic water and sea ice (9).
     
  3. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Yes I found it particularly interesting that there was a three degree drop in temp over an 8 year period attributed to the North Atlantic Oscillation.
     
  4. konradv
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    konradv Gold Member

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    Regardless of westwalls denials

    We DO know the heat-trapping properties of CO2.

    We DO know that the concentration has been going up, since the advent of the Industrial Revolution.

    Therefore, if the trend continues, warming is inevtable.


    Bringing up times when it's been warmer or colder is just a denier distraction technique. They haven't been ignored by climate scientists as they like to say. Rather, those are the times when "tricks" of the statistical trade are employed to "hide the decline" from other sources and winnow out the contribution made by man. The reason for the this constant need for distraction is that they can't discount the logic of the above syllogism and, therefore, have to to do ANYTHING to distract from the real issues.
     
  5. westwall
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    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

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    Yeah right cultist! Nice to see you've left your brain at the door...it will be so much easier to recycle you when the time comes....
     

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