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Thread: runaway greenhouse effect?

  1. Default

    Quote Originally Posted by Poor Debater View Post
    Because the neutrinos come from radioactive decay, and radioactive decay proceeds at a known pace. The half-life of thorium-232 is 14.1 billion years. That means if you have a bunch of it, you'll have half that much 14.1 billion years from now, and if you wait another 14.1 billion years you'll have half of the first half, and so on. These laws of radioactive decay have been well known for more than a century.
    http://www.spacedaily.com/news/earth-03k.html
    Wayne: What would control this energy output variability if it does exist?

    Dr. Herndon: In a nuclear fission reactor, the nuclei of uranium and other actinide elements are caused to fission in a chain reaction, splitting typically into two pieces.

    These fission products absorb neutrons and, if left in place, will slow the neutron chain reaction and, ultimately, will shut down the reactor. But the fission products have roughly half the atomic number of the uranium fuel and half the atomic mass. At the pressures that prevail in the deep interiors of planets, density is a function of atomic number and atomic mass. The fission products will therefore be less dense than the uranium fuel and will tend by gravity to migrate radially outward while the uranium fuel re-concentrates inward. One might imagine in the ideal case something of an equilibrium being established. But if, for example, the rate of production of fission products exceeds their rate of removal, the output power of the reactor might be reduced until the fission products have a chance to migrate by gravity away from the reactor zone. Then the power will increase.
    Between light and dark is life. Between good and bad is choice. We are all in between; we are gray men.


  2. #232

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    Quote Originally Posted by GrayMan View Post
    And you still fail to explain why the heat is suddenly, after millions of years, INCREASING from the core
    "Capitalise your gains and socialise your losses might make sense to a few, especially the few who wish to exploit others without repercussions but it does not make for a good or healthy society
    “There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.” ― Terry Pratchett

  3. Default

    Quote Originally Posted by Bowerbird View Post
    And you still fail to explain why the heat is suddenly, after millions of years, INCREASING from the core
    Until we know that the earths core has been stable for the past 150 years, global warming caused by CO2 is suspect. The changes in the magnetosphere point to the fact that the core has been changing since there is nothing else that could effect it.
    Between light and dark is life. Between good and bad is choice. We are all in between; we are gray men.

  4. #234

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    Quote Originally Posted by GrayMan View Post
    Until we know that the earths core has been stable for the past 150 years, global warming caused by CO2 is suspect. The changes in the magnetosphere point to the fact that the core has been changing since there is nothing else that could effect it.
    We are not certain of that

    This is like finding a known mass murderer standing over a corpse with a knife in his hand and then not only finding him innocent but actually charging the police with the crime
    "Capitalise your gains and socialise your losses might make sense to a few, especially the few who wish to exploit others without repercussions but it does not make for a good or healthy society
    “There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.” ― Terry Pratchett

  5. Default

    Quote Originally Posted by GrayMan View Post
    Until we know that the earths core has been stable for the past 150 years, global warming caused by CO2 is suspect. The changes in the magnetosphere point to the fact that the core has been changing since there is nothing else that could effect it.
    I do not have a lot of time but if ou know if you read some wild ass speculation on some RW nut job blog you should at least do some simple calculations to see what kind of energies are involved.

    Energy produced by largest nuclear bomb ever detonated by US
    : 64x10^15 joules


    source
    Difference in OHC between 1990 and 2000: about 5x10^22 joules or the equivalent of about 780,000 nuclear bombs.
    So there would have had to have been an increase equivalent to about 780,000 nuclear bombs detonating between 1990 and 2000 to produce the extra amount energy that the ocean absorbed.
    78,000 per year/ 200 per day / 9 per hour. Now tell me you think that is realistic.
    1. The Scientific debate remains open. Voters believe that there is no consensus about global warming within the scientific community. Should the public come to believe that the scientific issues are settled, their views about global warming will change accordingly. Therefore, you need to continue to make the lack of scientific certainty a primary issue in the debate, and defer to scientists and other experts in the field.--Luntz Research

  6. Default

    Quote Originally Posted by cassandrabandra View Post
    the models in recent years may not hae been 100% accurate all the time (some have inderstated the impact) but they have generally been able to show the trend.

    the model in question is factoring current events, and is therefore showing the likelihood of temperature increases greater than a number of previous models.

    note, Julian Hunt identifies a problem with the model, but does not dispute the temp increases as being unlikely - and provides his reasons for saying so.

    The information that is factored into models influences their accuracy (or otherwise), and the more information we get, the better the modelling.
    The models are wrong as is the flawed so called science the GW community claims.

    The lies have made the GW community unbelievable and without any credibility or integrity

  7. Default

    Quote Originally Posted by GrayMan View Post
    Until we know that the earths core has been stable for the past 150 years, global warming caused by CO2 is suspect. The changes in the magnetosphere point to the fact that the core has been changing since there is nothing else that could effect it.
    The magnetic field is generated in the liquid outer core by large eddies, which change slowly over long time periods. The Earth's magnetic field reverses about every half million years or so on an unpredictable basis. But it's not caused by heat, it's fluid dynamics.

    The Top 5 Tactics of climate denial:
    1. Cherry Picking 2. Fake Experts 3. Impossible Expectations 4. Misrepresenting the Science & Logical Fallacies 5. Conspiracy Theories
    Diethelm & Mckee 2009

    Honesty is not on the list.



  8. Default

    Quote Originally Posted by MannieD View Post
    I do not have a lot of time but if ou know if you read some wild ass speculation on some RW nut job blog you should at least do some simple calculations to see what kind of energies are involved.

    Energy produced by largest nuclear bomb ever detonated by US
    : 64x10^15 joules


    source
    Difference in OHC between 1990 and 2000: about 5x10^22 joules or the equivalent of about 780,000 nuclear bombs.
    So there would have had to have been an increase equivalent to about 780,000 nuclear bombs detonating between 1990 and 2000 to produce the extra amount energy that the ocean absorbed.
    78,000 per year/ 200 per day / 9 per hour. Now tell me you think that is realistic.
    The earth's core produces 44 Terawatts, or 44x10^12 joules/second. So that is ~1.4x10^22 joules in 10 years. So, yes I do think that the earths core plays an important role in the heating of the earth.
    Between light and dark is life. Between good and bad is choice. We are all in between; we are gray men.

  9. Default

    Quote Originally Posted by Poor Debater View Post
    The magnetic field is generated in the liquid outer core by large eddies, which change slowly over long time periods. The Earth's magnetic field reverses about every half million years or so on an unpredictable basis. But it's not caused by heat, it's fluid dynamics.
    Fluid dynamics can be affected by heat and desnity changes caused by heat. The flow of magma is an example. The flow can also have an effect on cores ability to produce heat by reducing or increasing its abiltiy to release heat or by increasing its ablity to remove the smaller less dense nuclie that would slow the fission process.

    My larger concern is not the rotation of the magnetic field as much as the strength.
    Between light and dark is life. Between good and bad is choice. We are all in between; we are gray men.

  10. #240

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    Quote Originally Posted by GrayMan View Post
    The earth's core produces 44 Terawatts, or 44x10^12 joules/second. So that is ~1.4x10^22 joules in 10 years. So, yes I do think that the earths core plays an important role in the heating of the earth.
    But why not a steady state output - why the sudden increase?
    "Capitalise your gains and socialise your losses might make sense to a few, especially the few who wish to exploit others without repercussions but it does not make for a good or healthy society
    “There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.” ― Terry Pratchett

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