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Old 15-12-2006, 11:27 PM   #41 (permalink)
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Not really explaining to me why ppm is the right scale are you.
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Old 16-12-2006, 12:49 PM   #42 (permalink)
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Quote:
Originally Posted by mkpdavies
Not really explaining to me why ppm is the right scale are you.
I am, but evidently you aren’t understanding it.
I’ll try again.
I have taken the actual data (not your arbitrary 0.5%) from the chart you called scary and plotted them using your preferred units (%) and your chosen scale of zero to 100.
This is what you get:

Yes, the data really is there. What can you tell from it about the concentration, fluctuation and rate of change of CO2 over the time period displayed?
Absolutely nothing.

Yet, go back to your “scary" chart and from it, over the time period displayed, you can see variations in CO2 from around 180 to 360 ppm, that the current level is higher than at any other time in that period, and that the most recent rate of change is much faster than at any other time.
Use your units and every single bit of that data is lost*.

Do you see now the reasons for scaling in ppm?

*Please understand that I am just pointing out what the data shows - or doesn’t if you use inappropriate units. I’m not stating any conclusions about the significance of that data.
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Old 16-12-2006, 02:36 PM   #43 (permalink)
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Nope still not seeing how that explains why PPM is the right scale. You can make anything look signifcant by choice picking a section of time and applying a certain scale to amplify any movement in that time.
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Old 16-12-2006, 03:42 PM   #44 (permalink)
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Quote:
Originally Posted by mkpdavies
Nope still not seeing how that explains why PPM is the right scale. You can make anything look signifcant by choice picking a section of time and applying a certain scale to ampflify any movement in that time.
Then I despair of your inability to make any objective analysis of the data YOU present.
You should be very careful about whom you call numpties and dingbats.
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Old 16-12-2006, 04:28 PM   #45 (permalink)
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Maybe if you actually answered my question, I might agree.
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Old 16-12-2006, 05:08 PM   #46 (permalink)
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Quote:
Originally Posted by mkpdavies
Maybe if you actually answered my question, I might agree.
I can't quite decide if you are being deliberately obtuse or you are genuinely so numerically challenged you can't understand basic arithmetic.
Convince me it isn't the latter.
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Old 16-12-2006, 05:32 PM   #47 (permalink)
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Still no answer then. Oh well.
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Old 16-12-2006, 05:41 PM   #48 (permalink)
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Quote:
Originally Posted by mkpdavies
Still no answer then. Oh well.
Which question do you want me to answer?
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Old 16-12-2006, 05:49 PM   #49 (permalink)
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Why PPM is the correct scale to use over any other scale and why only apply it to one small section in time.
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Old 16-12-2006, 06:05 PM   #50 (permalink)
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Quote:
Originally Posted by mkpdavies
Why PPM is the correct scale to use over any other scale and why only apply it to one small section in time.
Two points.
1. I already answered the first. Use an inappropriate scale and you lose all the data.
2. The section in time was your choice.
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