I know that the Greens will be out there today, because they were starting yesterday, blaming cyclone Yasi on coal mining.
It turns out that "massive cyclones" have been happening frequently over millennia.
According to a paper by BOM Queensland weather forecaster Jeff Callaghan, the frequency of severe land-falling tropical cyclones had declined to low levels in recent decades in line with the El Nino weather patterns. Callaghan’s analysis shows that landfalls occurred almost twice as often in La Nina years as they did in El Nino years and that more than one cyclone only ever hit land during La Nina years.
Callaghan says it would be imprudent to suppose the low number of tropical cyclones crossing the coast in recent decades would continue and planning should reflect the possibility of a rapid return to higher landfall rates.
Callaghan’s research confirms Nott’s analysis that tropical Australia is overdue for a dramatic intensification of cyclonic activity, regardless of whether there is a climate change signal in what is happening now or not.
Full article here
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