So it's all gases at greatest density will be doing the same thing around the planet at the same time (*) and as these
change with differences
in density
in the play between gravity and pressure and kinetic and
potential from greatest near the
surface to more rarified, less dense and absent any kinetic to write home about the higher one goes, then, energy conservation intact, the hotter will rise and cool because losing kinetic energy means losing
temperature, thus cooling they which began with the closest
in density and kinetic energy as a sort of band of brothers near the
surface will rise and cool at the same time whereupon they'll all come down together colder but wiser that great heights don't make for more comfort and giving up their heat will sink displacing the hotter now
in their place when they first went travelling.
Not only that, but there is increasingly compelling evidence that the recent short - term slowdown
in the
surface temperature record was much less pronounced than previously estimated, if rapid Arctic warming is fully reflected, along with
potential biases from the
changing mix of sea
surface temperature measurement sources
in recent years.