Do you want suggestions for the dependencies between meters in this thread, or just more ideas for meters?
I'd like some way for industry to damage a biosphere. This could be done with various minor specials for swamp/terran/ocean type worlds (gaia is immune to environmental damage) such as "Pristine Environement", "Healthy E.", "Weakened E.", "Endangered E." etc. These would give +/- to the environemental meter. The transition between environment specials could be affected by the industry meter... higher industry damages the environment.
More simply, the Industry meter could directly negatively affect the environment meter...
Construction: Rate at which infra/buildings are constructed. Mostly determined by technology/racial picks. The very top and bottoms of infra also heavily modify this value.
What is infra? Not a meter itself? This could also depend a bit on industry, but not be affected by what is being done with industry.
If there are all these techs giving +1 or +2 for various meters at most worlds, perhaps the direct benefits of focus should be a bit bigger? Right now, it seems that focus becomes insignificant fairly quickly, compared to the static bonuses.
I also refer to this:
http://www.freeorion.org/forum/viewtopi ... 2441#12441
Except with this addition: Instead of having techs that gives things such as "+1 to farm meter on farm focused worlds", how about techs which do this: "farm focus now gives +3 to farm meter" ... ie. increase the effects of the focus settings, but don't make a separate category of bonuses that only affect certain focused worlds... (this is redundant anyway, it seems...). Area of effect bonuses for certain focused worlds could be included in this as well.