Oh so you are saying you don't care about the meaning of said graphs just your "impression" of them?
Well, what I said was perfectly clear, and *that* misrepresentation of it isn't remotely close to what I clearly said. So's Law strikes again.
Because anyone whose had even an intro geology class is not surprised by the graph and knows that scientists actually have some pretty solid understanding of why the temperature fluctuates naturally.
Oooh - condescension. That's usually the first sign of someone who knows they're losing an argument. (Just sayin...)
The illogic behind your position is to assume that since it has shifted before it can't possibly be due to a NEW forcing mechanism (human activities).
Actually, I didn't assume anything of the kind. What is it you think I said that required something I never assumed in the first place?
You probably don't know this but the REASON we know so much about the HUMAN IMPACT of the past 150 years is because we know the earlier temperature shifts and we have a better understanding of natural variation so we can better understand that the CURRENT changes are likely not due as much to natural forcings.
LOL - whatever.
I understand that this subtlety is lost on many.
Oooh, ooh - more condescension. Not a good sign, my friend. Not a good sign.
But it does take a climate scientist or a geologist to EXPLAIN what that graph really means. Again, if this is not your area it is understandable that your "simple" reading of the graph might miss key points.
Well, let's see - there's temperature on the vertical axis and time on the horizontal axis of one graph; and there's CO2 levels on the vertical axis and time on the horizontal axis of the other graph.
Are you suggesting that there's more to the first graph than the change in CO2 over time?
And are you suggesting that there's more to the second graph than the change in temperature over time?
What is this "less-than-simple" mystical reading of either graph that you think it is I - or anyone else for that matter - is missing because we're too stupid or too uneducated to grasp the "true" meaning of either graph?
So it is more surprising that you don't understand the detalis behind such graphs. Or the illogic of your "post hoc ergo propter hoc" view.
LOL -
If you plopped a physics graph, say a Feynman diagram in front of me I wouldn't necessarily know how to read it in detail.
Well that's odd - are you telling us you don't even *know* how to read a graph?? I mean seriously - is it your contention that the two graphs of Temperature vs. Time and CO2 vs. Time are even REMOTELY similar to a Feynman diagram? Have you ever even seen a Feynman diagram? How is it you'd make a comparison of these graphs to a Feynman diagram anyway?
But you put an earth science graph in front of me I can say there's more than a simple read to it.
Ah, so you CAN read a basic graph! Whew!
I'll ask you again - you have the Temp vs. Time and CO2 vs. Time graphs in front of you, what is the "more than simple read" to them?
Indeed, what DID I say - or more precisely - what did I ask? I asked where on those graphs the 42 year span of data that [serious] posted would overlay? Isn't that what I asked? I'm pretty sure it is what I asked, being as those are the words I used and constructed into the sentence I did. Didn't I?
You apparently have some special insight however into the real reasons why I posted it. I'd be interested in knowing what those reasons are; I'd be even more interested in knowing how you came to such knowledge of my motives.
I doubt you are a climate scientist. If you were you'd know what this graph actually tells you about the state of the science.
Don't doubt -
know that I am not a climate scientist. Goodness, where did you get the idea I was??
And frankly, what does my being or not being a climate scientist have to do with what I posted - unless of course only climate scientists are capable of interpreting graphs of Temp vs. Time and CO2 vs. Time. Is that your contention?
Out of curiosity - are you able to show us where on either graph - either the graph showing CO2 vs. Time or the one showing Temp vs. Time - where the 42 year period of 1970 to 2012 lie? Might you be able to do that for us?
I tell you what - I'll give you a hint - "0" on both graphs represents the year 1950, so we're going to have to extrapolate a little bit, since 1970 to 2012 will of necessity lie to the right of the "0" on both graphs. To do that, it's probably easiest to expand our time frame from 1950 (year "0") to 2012 - making a 62 year span of time instead of 42. With me so far? Good.
Ok, now what we need to do is recognize that the first identified time to the left of the year 0 is the year 50,000 - which is five "ticks" to the left of the 0. That means that each one of those ticks represents 10,000 years. Make sense?
Since the question is where we'd place that 62 year time span on the graph, we need some mechanism of measure to do that. Let's pick one - let's say that the distance from 0 to 50,000 is 1 centimeter (1/100th of a meter) - which btw, is visually a fair approximation of the actual distance, depending on one's monitor size. Given that, then the first tick (10,000 years) is one fifth that distance, or 1/5th of a centimeter, or 1/5th of 1/100th of a meter - or, 1/500th of a meter. Would you concur?
Now, the hard part. What is the distance represented by our 62 year span of time? Well, 62 years divided by 10,000 years is 62/10,000 or 0.0062 - correct?
Now, since 10,000 years is one tick on the graph and one tick is 1/5th of a centimeter, then our 62 year period is 0.0062 of that, right?
Or, our 62 year period is 0.0062 fifths of a centimeter or 0.0062/5. Still with me?
0.0062/5 = 0.00124 Centimeters
That's a little hard to visualize so let's convert that to millimeters.
We know that there are 10 millimeters in a centimeter, so we can multiply that value by 10 to convert it to millimeters.
10 x 0.00124 = 0.0124 millimeters. Even that is difficult to visualize, so let's take something a little more common - let's take the average diameter of a human hair, which varies from about 0.04 mm to 0.25 mm. Let's pick an easy one somewhere in the middle for math's sake and say the avg human hair is 0.124 mm in diameter, ok? I hope the reason for that value will be obvious in a sec...
Well, 0.0124 mm represents our 62 year time span and 0.124 mm is the width of the average human hair.
I think if one does the math from here that we can see that 620 years on that graph is roughly the width of a human hair, and therefore our 62 year time span one tenth the diameter of a human hair - correct?
So, take a human hair - slice it into ten equal widths - take one and lay it on that graph and voila! There's [serious]'s graph overlaid on mine.