climate sensitivity

Discussion in 'Environment' started by Old Rocks, Jan 6, 2010.

  1. Old Rocks
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    Old Rocks Diamond Member

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    Pubs.GISS: Abstract of Lunt et al. 2010

    Earth system sensitivity inferred from Pliocene modelling and data
    Daniel J. Lunt1,2, Alan M. Haywood3, Gavin A. Schmidt4, Ulrich Salzmann2,5, Paul J. Valdes1 & Harry J. Dowsett6



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    AbstractQuantifying the equilibrium response of global temperatures to an increase in atmospheric carbon dioxide concentrations is one of the cornerstones of climate research. Components of the Earth’s climate system that vary over long timescales, such as ice sheets and vegetation, could have an important effect on this temperature sensitivity, but have often been neglected. Here we use a coupled atmosphere–ocean general circulation model to simulate the climate of the mid-Pliocene warm period (about three million years ago), and analyse the forcings and feedbacks that contributed to the relatively warm temperatures. Furthermore, we compare our simulation with proxy records of mid-Pliocene sea surface temperature. Taking these lines of evidence together, we estimate that the response of the Earth system to elevated atmospheric carbon dioxide concentrations is 30–50% greater than the response based on those fast-adjusting components of the climate system that are used traditionally to estimate climate sensitivity. We conclude that targets for the long-term stabilization of atmospheric greenhouse-gas concentrations aimed at preventing a dangerous human interference with the climate system should take into account this higher sensitivity of the Earth system.
     
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  2. waltky
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    waltky Wise ol' monkey Supporting Member

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    Climate change could cause stronger turbulence for airline passengers...
    [​IMG]
    Climate Change Could Cause More Turbulent Flights
    April 11, 2017 - Climate change could cause stronger turbulence for airline passengers, according to a new study.
    See also:

    Scientists Link El Nino to Increase in Cholera in Eastern Africa
    April 10, 2017 - Researchers are reporting a link between a climate phenomenon know as El Nino and the number of cholera cases in eastern Africa. Predicting when there’s going to be an El Nino event could improve public health preparedness.
     
  3. SSDD
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    SSDD Gold Member

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    Climate sensitivity to CO2 is well on its way to zero...along with the credibility of climate pseudoscience.
     
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  4. Old Rocks
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    Old Rocks Diamond Member

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    Sure, dumb cocksuck. With three of the warmest years on record in a row. Go back to your smart photons.
     
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  5. skookerasbil
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    skookerasbil Gold Member

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    Ummm..........not a scientist alive knows with any degree of certainty what the "sensitivity" of the climate is. In 2017, it is pure theory. Perhaps decades from now we may be starting to get some grasp on the true sensitivity of the climate but this will happen only with significantly more cooperation between skeptics and alarmists.
     
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  6. skookerasbil
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    skookerasbil Gold Member

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  7. polarbear
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    polarbear I eat morons

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    This is getting ever more ridiculous, using some fringe group's home brew simulation as evidence.
    So what is it these freak out "news" merchants are saying?
    That CO2 radiates 3050 % more IR than 400 ppm CO2 could have possibly absorbed?
    Them hyping it as 3050 % should have stimulated a few of your brain cells that are supposed to do some critical thinking.
    In the extreme case ignoring all the other atmospheric gas CO2 could only back radiate 100% of the greenhouse gas IR.
     
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  8. Weatherman2020
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    Weatherman2020 Educating Libs Since 1978

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    THE COMPUTER MODELS THEY CREATED CONFIRM IT!
     
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  9. skookerasbil
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    skookerasbil Gold Member

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    indeed......such a farce. Its like Chevy saying their engines are clearly the best.:boobies:
     
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  10. Old Rocks
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    Old Rocks Diamond Member

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    Link? Who, where, credibility of the publication.
     

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