Global Warming is happening...on Mars

Discussion in 'Environment' started by theHawk, May 15, 2011.

  1. theHawk
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    theHawk Registered Conservative

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    Explain this one warmers:


    Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says



    Or is this another one of those times we need to conveniently leave out science? :eusa_shhh:
     
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  2. CrusaderFrank
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    CrusaderFrank Diamond Member

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    SUV's on Mars. Has to be! Nothing else fits the facts.
     
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  3. Sherry
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    Sherry You're not the boss of me Supporting Member

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    Men are from Mars....GW Bush is a man....so it's Bush's fault.:D
     
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  4. Old Rocks
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    Old Rocks Diamond Member

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    God ol' friday! Don't you even bother to investigate the facts before you post your stupidity for all to see!

    The total solar irradiance has been decreasing since 1960.

    Solar activity & climate: is the sun causing global warming?
     
  5. CrusaderFrank
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    CrusaderFrank Diamond Member

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    Did you bother to even skim the article before turning into a AGW Zombie?

    "In 2005 data from NASA's Mars Global Surveyor and Odyssey missions revealed that the carbon dioxide "ice caps" near Mars's south pole had been diminishing for three summers in a row."
     
  6. Old Rocks
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    Old Rocks Diamond Member

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  7. Old Rocks
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    Old Rocks Diamond Member

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    Yes, and at the same time Uranas is cooling.
    Global warming on Mars, ice caps melting


    t is hard to understand how anyone could claim global warming is happening on Mars when we can’t even agree what’s happening on the planet we live on. Yet they do, and the alleged reasoning is this; if other planets are warming up, then there is some solar system-wide phenomena at work – and therefore that it isn’t human activity causing climate change here on Earth.

    The broadest counter argument depends on a simple premise: we know so little about Mars that it's impossible to say what trends in climate the planet is experiencing, or why changes occur. We do have information from various orbiting missions and the few lander explorations to date, yet even this small amount of data has been misunderstood, in terms of causal complexity and significance.

    There are a few basic points about the climate on Mars that are worth reviewing:

    Planets do not orbit the sun in perfect circles, sometimes they are slightly closer to the sun, sometimes further away. This is called orbital eccentricity and it contributes far greater changes to Martian climate than to that of the Earth because variations in Mars' orbit are five times greater than the Earth.
    Mars has no oceans and only a very thin atmosphere, which means there is very little thermal inertia – the climate is much more susceptible to change caused by external influences.
    The whole planet is subject to massive dust storms, and these have many causal effects on the planet’s climate, very little of which we understand yet.
    We have virtually no historical data about the climate of Mars prior to the 1970s, except for drawings (and latterly, photographs) that reveal changes in gross surface features (i.e. features that can be seen from Earth through telescopes). It is not possible to tell if current observations reveal frequent or infrequent events, trends or outliers.
     
  8. CrusaderFrank
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    CrusaderFrank Diamond Member

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  9. CrusaderFrank
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    CrusaderFrank Diamond Member

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    You're telling us you've eliminated all other variables in Earth based climate expect for a 60PPM increase in CO2 but you can never show us how this happen....why is that?
     
  10. Old Rocks
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    Old Rocks Diamond Member

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    Hmm.... About a 110 ppm increase in CO2, which is about a 40% increase over the pre-industrial amount, 280 ppm. It has been about 15 million years since we have had this much CO2 in the atmosphere. In fact, during the last interglacial, the level reached 300 ppm, and the sea level was about 6 meters higher than today.

    Given the rapidity with which we have put CO2 into the atmosphere, the cryosphere has not had time to respond, but one can clearly see the trend in the melting of the glaciers, land based icecaps, and the Arctic Ice.
     

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