Posted: Thursday, August 8, 2013 12:00 am
Updated: 1:34 am, Tue May 20, 2014.
An international examination of last year's weather concluded that 2012 was a good example of how long-term warming is overriding natural weather variability.
That doesn't mean natural variability doesn't exist and doesn't exert a powerful infuence. The flash drought that devastated the Central Plains last year was believed to be mostly a result of natural variability, federal researchers have said.
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Thursday, August 8, 2013 12:00 am.
Updated: 1:34 am.