Quote:
Originally Posted by tiger
Brilliant use the temperature in one city on one day to make your point.
Try using the average temperature for the entire planet on a yearly basis.
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Funny you say that, because the low atmospheric temperatures (surface temps) that are used in global warming studies are simply a composite of temperature readings just like this one. As pointed out in the IPCC study (that obviously no one has actually read...)
From page 9:
"Difficulties remain in reliably simulating and attributing observed temperature changes at smaller scales. On these scales, natural climate variability is relatively larger making it harder to distinguish changes expected due to external forcings. Uncertainties in local forcings and feedbacks also make it difficult to estimate the contribution of greenhouse gas increases to observed small-scale temperature changes"
Which means "All the temperature data we have at the local level is useless".
But hey, who actually wants to read the whole report, or consider the source data.. that would take away from all the fun!