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When I get a respectful answer, I give a respectful answer:In a closed system, yes. But Earth is not a closed system. The wind constantly generates as long as there is sun to heat the land and the water and pressure in the air, there will always be wind.
We are talking about how that system is modified by extracting energy from it as reduced velocity, and because that can impact moisture take up it is also a question of how that impacts cloud formation. That change is permanent since the energy does not reinvent Something ends up colder (micro property) or wind velocity lower (macro property). Worsecan be the feedback:
Anything that can mess with cloud formation changes the impacted energy so like a heatpump can cause a change out of all proportion to stimulus.
Anyone who ever analyzed weather patterns knows small changes in initial condition can make massive changes in pattern development..
We had problems with it every time it was part of our work: radar propagation , on structure distortion in high winds and on modelling a vortex shedding flow meter.
Proof of that: If you look at the app "weather radar" you can often see a totally different prognosis for the "today" cast from the "Now cast" when referring to exactly the same time. And if they are not different just look at a different weather app, and there will be big differences in low pressure propagation of weather, so big difference in forecast
So it doesnt take much to have influence.
And that is my worry - we are rushing headlong into something ill understood.
Here is my worry: A paper written by industry funded directly by the offshore windmill industry , or by those with vested interest to say "all is well", in a sector where political factors dont want there to be a problem, is not going to conclude "problem" since it is unlikely to look very hard for problems!.
If they had asked inseteda "then what has been changed by windmills because something MUST have done, either micro or macro, they then might have found where the energy deficit manifests. A matter of asking the right questions.
Reality is as the propagation occurs over long distance the difference become immeasurable not least because noticing whehter anything has changed depends on comparing a base line, and the base line for this is a hard problem because no two times are really comparable.
You say "no evidence".
Very Early on in this conversation I pointed out that there are those who speculate that offshore windfarms can divert the path of and development of hurricanes in gulf of mexico. A paper was written somewhere. The industry cannot have it both ways. No impact vs mega impact.
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