Link found between infrasound emitted by wind turbines and complaints of “unbearable sensations” by residents.
In a groundbreaking study at Pacific Hydro’s Cape Bridgewater windfarm in the state of Victoria, Australia’s leading acoustical engineer Steven Cooper found that a unique infrasound pattern, which he had labelled “Wind Turbine Signature” in previous studies, correlates (through a “trend line”) with the occurrence and severity of symptoms of residents who had complained of often-unbearable “sensations”.
These include sleep disturbance, headaches, heart racing, pressure in the head, ears or chest, etc. as described by the residents (symptoms generally known as Wind Turbine Syndrome (WTS), or the euphemism “noise annoyance” – ed). (1)
The acoustician also identified “discrete low frequency amplitude modulated signals” emitted by wind turbines, and found the windfarm victims were also reacting to those.
The Wind Turbine Signature cannot be detected using traditional measuring indexes such as dB(A) or dB(C) and 1/3 Octave bands, concludes his study. Narrowband analysis must be used instead, with results expressed in dB(WTS).
He suggests medical studies be conducted using infrasound measurements in dB(WTS) in order to determine the threshold of what is unacceptable in terms of sound pressure level.
The findings are consistent with the official Kelley studies published in the US more than 30 years ago, which showed that infrasound emitted by early, downwind turbines caused sleep disturbance and other WTS symptoms (2). These studies were shelved, upwind turbines were designed, and the regulatory authorities simply trusted the wind industry’s assertion that the new models did not emit dangerous infrasound. The Cooper study now proves they were wrong.



But they’ve been contradicted by a highly authoritative scientific team, one actually set up to try an establish objective facts in this area.

People and soldiers walked or rode horses, and millions of horses and oxen pulled ploughs, wagons, coaches and artillery.
This is especially true when compared to Al Gore-style global warming politicians, government funded university Ph.D. climate scientists and the United Nations Intergovernmental Panel on Climate Change (UN-IPCC).



So I must admit that I was both amused and flattered to be invited to be a Friend with Jim Peden, the Astrophysicist, and one of my absolute heroes. So two days ago I was lead by Jim on Facebook to an essay in Climate Change Dispatch by his colleague at Principia Scientific International, Dr Pierre R Latour.
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