gizmo_2655
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Australian Politics
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South West NSW
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Doctor Jolly wrote on Feb 21 st, 2012 at 8:09am: gizmo_2655 wrote on Feb 21 st, 2012 at 12:42am: Doctor Jolly wrote on Feb 20 th, 2012 at 1:23pm: The difference between all those you mention, and global warming, is global warming is actually a consensus view of scientists, and an enormous amount of work has gone into verifying it. Your predictions are from one or two theorists. But I'm sure you knew that. gizmo_2655 wrote on Feb 20 th, 2012 at 12:52pm: I guess I'm a little cynical about these sorts of things...
After all, I've been through the 'only an inch of topsoil' famine caused extinction of humanity by 1970 (1975, 1980, oh wait, 1990)
And the 'only enough oil for 3 months' things in 1973, 1979, 1985, 1995, 2001 etc etc...
And my parents, grandparents and uncles/aunts have told me about the various 'end of the world, next Thursday' things from their childhoods, although, those were usually due to the 'decay' of contemporary society (votes for women was going to cause it, so was promiscuity, splitting the atom, the invention of motorcars, the decline in church attendance, the approaching millennium (1900) and pretty much everything else).....
It seems there are ALWAYS groups around, predicting the fall of man.....since the 50's it's been environmental, rather than the older 'wrath of god' type though....
About the only common thread is, all the predictions have failed, and many have failed miserably... Well I wasn't actually referring to 'global warming' when I said environmental issues......more the running out of resources, running out of food and over population bits.... That being said, a 'consensus' on an untested theory that exists in a vacuum is all that compelling. Despite all the testing that's apparently gone on, this is the very first time that science has had the capacity to make these assumptions.....you can't compare real world measurements with fossil measurements (ice cores, geo-cores, tree rings etc) with any degree of accuracy, because the best the fossil measurements will give you is a range of temperatures with a plus/minus degree of error that is pretty large.. But its the deniers who hang their arguments on these historical data samples. Middle ice age ? Hotter or Cooler 1000's of years ago. They go on like rapid global warming is just normal, because the fossill measurements tell them so. Ignoring, as you say, the error ratio. Which is not an error in it's self...It simply highlights the problem. IF there had been no warming events before industrialisation, then Co2 would be the definite culprit....but there have been previous events, the question is why is this time different, and how can you say it is, without accurate comparison data?? The temperature increase since 1880 has been around 1 C degree, so the per century rate is 0.8 or 0.9 C.......that's ok, I'm not arguing with that, but there's no way to say if the rate of increase during the MWP was lower (or the same, or even higher), after all, this IS the first time we've had accurate daily/yearly/decadal temperature readings. DRAH (for one) constantly refers to the 'rate of change', which would be the best method of comparison, if we had any equal records to compare it to....but just mentioning rate of change, without any indication of the realtionship to earlier rates of change is pointless, if not counterproductive...
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