Originally posted by joe beyser
http://news.nationalgeographic.com/news/2007/02/070228-mars-warming.html
Science is not a democracy humy. For the purpose of this discussion we will have to get back to the dull dry data I provided on the link that showed a natural rhythm in the warming and cooling cycles. One can not go about beating their chest and proclaiming to be gods gift to scie ...[text shortened]... tor. Perhaps the man made CO2 may help moderate the next ice age but probably not significantly.
sorry But your link couldn't be more idiotic
it says
"... 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. "
...OK, so what? Well, it then continuous with;
"...Habibullo Abdussamatov, head of space research at St. Petersburg's Pulkovo Astronomical Observatory in Russia, says the Mars data is evidence that the current global warming on Earth is being caused by changes in the sun.
..."
Errr NO it is NOT evidence of that at all!
False inference. How does one imply the other? The link doesn't explain presumably because the commentator doesn't know himself.
The hypothesis that the sun must be causing the resent warming of the Earth's climate has been CONCLUSIVELY PROVEN FALSE from the data which I explained in previous posts. As I explained before, the cooling of the stratosphere relative to the troposphere proves solar activity cannot be the primary cause and it proves CO2 is the primary cause and I already explained the physics of that in detail to explain WHY that is.
Then it says:
"...Mars and Earth, for instance, have experienced periodic ice ages throughout their histories. ..."
Same old straw man from man made global warming deniers [ MMGWDs ]: Nobody CLAIMS that past fluctuations in climate is driven by CO2 nor does the greenhouse theory imply that most/all past fluctuations must have be caused by CO2 fluctuations in the slightest therefore all that past natural climate cycles is completely IRRELEVANT.
then it says:
"..."Man-made greenhouse warming has made a small contribution to the warming seen on Earth in recent years, but it cannot compete with the increase in solar irradiance," Abdussamatov said. ..."
false assertion: What evidence does he present to support this assertion? answer; none.
Science is not a democracy humy.
correct; which is not why I said that. I said that because some MMGWDs , metalbrain being an example, claim that most climate scientists disagree with me and say there is no conclusive evidence of man made global warming. This is simply not true.
For the purpose of this discussion we will have to get back to the dull dry data I provided on the link that showed a natural rhythm in the warming and cooling cycles
For what 'purpose'? It is IRRELEVANT. Nobody CLAIMS that CO2 induced warming means there cannot be other causes of warming and showing examples, even a billion examples, of warming that occurred in the past that wasn't caused by CO2 in the past does NOT logically imply in the slightest that CO2 cannot cause warming therefore that is totally IRRELEVANT.
I don't believe anyone has said CO2 doesn't absorb heat radiation ...
There you are wrong; this is one of the most common claims I have heard again and again from MMGWDs despite the fact very basic physics says it MUST absorb some infrared. They say that "it is just an assumption" that CO2 absorbs infrared despite the fact its absorption spectra has been studied in exhaustive fine detail both in and out of the lab and basic physics says it should absorb infrared.
What explains the warming 800 years before the CO2 increases?
IRRELEVANT. It not being CO2 for particular past cases doesn't logically imply in the slightest that CO2 cannot ever cause warming.
If there is warming due to CO2 increases then why did the temperatures drop instead of increase even more?
'drop' when?
The above link shows what is going on on Mars and will help eliminate the human factor.
no it doesn't. The link is totally idiotic.
Perhaps the CO2 may help moderate the next ice age but probably not significantly.
Irrelevant. The next ice age isn't due for many thousands of years and the effect of global warming from CO2 increase within the next ~200 years could be significant and harmful if we do nothing about it.
you appear to be making exactly the same logical error I see so often made by other MMGWDs. I explained in the other post why this logic is flawed. Did you read that? I said it is flawed because, using the same 'logic', past temperature data shows the early morning sun shining on a forest warms the forest; so we cannot cause to temperature of the forest to rise by setting fire to it because that past temperature data proves fire isn't the cause of temperature rise? -exactly the same logic and completely in error for exactly the same reason; it makes the false inference that examples of past causes of something not being cause c but being some other cause logically implies cause c cannot ever be the cause of that same something; -it doesn't logically imply that in the slightest.
If the same 'logic' is completely valid, then fire cannot ever make things hot.
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Do you understand and agree with this above argument?