It all depends on the scale, doesn’t it?

[marchesarosa]

A SALUTARY LESSON IN UNDERSTANDING THE IMPORTANCE OF SCALE


Just look at these graphs, all of the same thing, global temperature as revealed in a Greenland ice-core,
BUT over ever-extending time periods.
Imagine the camera "ZOOMING OUT" to reveal ever more of the big picture.
The time scale is along the x-axis (horizontal).

Makes you think, doesn’t it? Well, it makes me think, I don't know about you!

(Please centre the graphs on your screen to get the effective comparison.
The right hand side is always where the temperature is NOW relative to the past.)

And, yes, the temperatures are in minus degree celsius because it is very cold
in Greenland, nearly ALL the time.



Fig (i)

Fig (ii)

Fig (iii)

Fig (iv)

Fig (v)

Fig (vi)

Fig (vii)



"In other words, we’re pretty lucky to be here during this rare, warm period in climate history. 
But the broader lesson is, climate doesn’t stand still. 
It doesn’t even stay on the relatively constrained range of the last 10,000 years
for more than about 10,000 years at a time."


I DONT WISH TO BE ALARMIST BUT IT LOOKS LIKE WE'RE DUE A DIP
BACK INTO THE FREEZER AGAIN.


Once again courtersy of WUWT. Read the full article here wattsupwiththat.com/2009/12/09/hockey-stick-observed-in-noaa-ice-core-data/

[marchesarosa]

I do realise the importance of scale and I would have made these graphs smaller so that they can all be viewed simultaneously
for purposes of comparison if I had known how.


Can anyone explain how to get the graphs smaller in size, please?

[marchesarosa]

Which is your favourite graph? Mine is Fig (v).

It shows nicely that global temperatures are actually in a downward trend regardless of occasional upward wobbles.

[marchesarosa]

Someone has very kindly animated the above graphs.