Wednesday, 17 July 2013

Remind me again: Is earth getting hotter or colder? Persuade me with a chart.

There's the last half million years.  The little box in the upper right is the last ten thousand years.  If you take a hand lens to the chart, you might make out the last hundred years which gave birth to climate alarmism.
If you are a betting person, would you be saying colder or hotter is the trend?  Would you call everything since the invention of writing a baseline for climate or the upper limit for climate?
The chart is reproduced in Hoskins review of climate change at Watts Up With That.
(We're talking a ten degree Celsius swing here.  The horizontal time line is compressed, making it look more dramatic than perhaps it is.)

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