elephant wrote:And apart from the risk (as for any large building) to see a plane crashing on it, what are the risks for air navigation? Do not we risk seeing a micro climate appear? Or disturbances at medium altitude?
For the Nazare-Sumatel towers or for the Michaud project, the risk is certain, in my opinion. I have been very clear about this.
It is not the same for the wind turbines, from which the tornado cannot escape. On the other hand, there may be a phenomenon of condensation above the tower (we can recover fresh water on the sides of the upper fairing), but a few more clouds can only be welcome in these times of global warming.
As for air traffic, it is always prohibited above power plants (thermal and nuclear). As we are proposing to build the towers near these power plants, or even in place of their cooling towers, that will not change much. And at high or medium altitude, the warm air plume will be completely diluted and will have lost all its velocity. No risk therefore.
Alain