Green Player
Do players even think "Green" while participating in an RPG?
I also do not understand the question, unless it is referring to ecological friendliness? Is this in-game, like, not burning down forests or polluting water sources, when adventurers are doing their thing? Or is this out of game, like... I'm not sure, really, I can't think of much players do when playing an RPG they don't normally do in their daily life. Assuming in-game, I think most players tend to try to be civil and not be needlessly destructive or mess things up, in a big way, if possible - I think it is part social programming, you don't trash things in real life (usually) and tend to carry that over even in imagination, and part because you never know when the GM is going to cause something you've done to come back and take a big bite out of your behind. Do people do it because their characters have an actual concern about the in-game denizens... I rather doubt it.