Nickel Hydrogen battery

Presumably you get back 90% of the energy you use to charge the battery. 85% is more typical.

Except that you can't separate them.

The earth is a black body radiator, and the waste heat will warm the planet at it's surface.

That eventually gets radiated out into space. Some of it is absorbed by CO2 on the way up, and re-radiated from the colder atmosphere up there on its way out into space.

Don't be silly. The warming comes from the sun. The warming effect we feel at the surface does change as the effective radiation altitude moves higher in the atmosphere, where the air is colder. The effective radiation altitude does depend on the wavelength of the radiation being emitted, which is a complicating factor, but nothing elaborate.

Learn some physics. That's meaningless word salad.

Weathering silicate rocks to carbonate. One entirely practical scheme to combat anthropogenic global warming involved digging up olivine, crushing it and spreading it on beaches, river-banks and fields where it would be damp enough to react with CO2.

In the oceans phytoplankton could do the job. Some micro-organisms grow carbonate shells which sink to the bottom of the ocean when they die. Giving them the right trace nutrients to get more of them would help too

The Sun is a black body radiator at about 5800K so it contains a lot of IR - about half the energy comes out at wavelengths longer than we can see.

Actually the excitation of molecular vibrations. The only atoms in the earth's atmosphere are the inert gases, mostly argon at 0.93% and none of them absorb in the visible.

Condensed mater has a much broader absorbtion spectrum than atmospheric gases.

You really do need to learn some physics. "Heat" is energy. Light interacting with matter does deposit energy in that matter, but optical photons are just another form of energy.

But if you enlarge the surface area by crushing it, a shorter period of "forever".

Molecules are made up of atoms. Because the atoms are bonded, the bonds can stretch and compress and these vibrations store energy.

There's nothing peculiarly energetic about them - single atoms are confined to absorbing and storing energy by electronic excitations, which tend to be more energetic and correspondingly harder to excite and shorter lived.

Your problem seems to be that you don't have any kind of detailed grasp of what is going on, and persistently make bizarre and unhelpful distinctions.

mostly argon at 0.93% and none of them absorb in the visible.

What do you actually mean? The statement is wrong. You have something in mind different that what you said. Some kind of ellipsis at work here.

Ed

The only single atoms in the earth's atmosphere are the inert gases. The nitrogen and oxygen atoms are present as diatomic molecules.

They don't get excited by visible sunlight either.

You seems to have something different in mind from what I said, and you need to spell it out.

ellipsis /ɪˈlɪpsɪs/ noun noun: ellipsis; plural noun: ellipses

the omission from speech or writing of a word or words that are superfluous or able to be understood from contextual clues. "it is very rare for an ellipsis to occur without a linguistic antecedent" a set of dots (…) indicating an ellipsis.

Fred Bloggs didn't seem to understand the difference between atoms and molecules which it comes to absorbing solar radiation. Isolated atoms can't do it on their own.

Molecules have vibrational and rotational modes that can be excited by visible light and the longer wavelength near-infra-red that convey the other half of the sun's output to us.

Condensed matter is essentially molecular, in that the atoms in it interact fairly strongly and have vibrational modes that can be excited by incident radiation.

But deep enough that you clearly haven't immersed yourself in it.