dedeleco wrote:
this cold water 4 ° C deep, at least a thousand years old, is replaced by hot water.
Another annerie, is it a mania to criticize before getting information from the green or what? The heated cold water is not "reinjected" in depth, it has no technological interest.
The stupidity is that which too quickly does not think enough (note the spelling of the annery, and the corrector of econology works well, him) !!
When we pump deep water at 4 ° C, without believing to replace it, even if it is not reinjected, it is really replaced by the flow at the bottom of the ocean by Archimedes, (otherwise we would make a hole with a vacuum at the bottom of the ocean and it would take much, much more energy to pump, 100bars at 1000m deep !!) which comes down to reinject surface water by slightly accelerating the circulation of surface water towards the bottom of the oceans all over the planet !!!
The good remark would be to notice that the cold energy from the bottom of the oceans is enormous (1000 years of Guf Stream and thousands of meters of water thickness at 4 ° C at the bottom of the oceans) and therefore as long as we take little , the effect remains weak.
This inertia of the oceans slows global warming, which would happen quickly in a few years instead of a thousand years !!
Unfortunately this remark of small levy is false, with 6 billion men, who take all the riches of the earth, which are not eternal, CO2, by burning O2, oil, metals, etc .. !!
If the Gulf Stream stops, it would be a good way to restart it !! (with 6 billion men pumping this water from the depths in hot regions, like shadoks) !!!
Claude was a good physicist as explained by chatelot 16 !!
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His maximum efficiency machine could be used to make a heat pump without electricity, using the energy of the small temperature difference between the warm earth and the cold outside in winter, in a Canadian well ???? !!!
Finally, I am not as green as that, but objective, noting the indisputable reality. and I am not sure that CO2 explains the current warming, for example, because it occurred 125000 years ago without CO2 !!.