Difference between "Minor Enviornment Gain" and "Eco Footprint Green" scores

[Spiderkeys]

I'm trying to turn Windenburg into a Green Footprint, and normally I just go for Eco Footprint Green Walls/Floors/Objects. But many more also say "Minor Enviornment Gain" also, which is normally confined to Trees, Bushes,  Doors and Windows, and it usually a score of only or 1 or 2.

This is not to be confused with the other tag simply name "Environment" score since the basegame, which applies to many decor objects. I know that helps create a happy mood. But just still cannot work out what the other Environment is trying to say.

It's sound very important, and I just like to know what it means...

[Brian_Z]

"Minor Environment Gain" makes the room pleasant to be in, and an overall positive score will give your sim a happy moodlet when they're in that room.  It doesn't affect the Green/Industrial meter at all.

[Spiderkeys]

Why couldn't they simply call it Environment just like most other objects, if both words do the same thing, just makes it confusing...