The "gravity constant" that you are describing is the gravity acceleration at the earth surface due to the earth (where you may or may not have subtracted the centripetal acceleration due to the earth rotation) which changes with the position on earth mainly due to the fact that the distance from the surface to the center of the earth is changing (due to flattened at the poles and bulges at the equator). So this is more a change with location than a change with time. The ESA studies is more about the measurement of the earth gravitation from "outside" the earth, to create a model for orbit evolution with time. (Jn parameters, with n>= 2) And they study this evolution in time, for all location. So it's not exactly the same.
(Anyway, the g that you talk about can be seen as an evaluation of the Jx modelisation at earth surface so this is of course related. Bu the study is more about time change than space change)
I think the elephant in the room is that most women have babies.
The share of women having babies in the women population is very close to the share of men having babies in the men population.
The Irish employees don't have to obey US law, but they do have to obey their bosses who in turn do have to obey US law.t compel them to do anything.
Not if what the US bosses ask them something which is forbidden by Irish law.
Putin, who doesn't want to see NATO missile launchers even closer to the western border.
So to not see NATO missile launchers closer to the western border, he pushes this border to the west? What a stupid move.