http://mearls.livejournal.com/152268.html Exalted has had this (and other games too) for quite a while. Scenery, scenery, scenery used to be the mantra in our online games. Exalts being played right should chew scenery like it is going out of style. In fact, players are encouraged to, unless it breaks what the GM has already stated about the scenery, to _add_ to the scenery in order to make use of it.
Fighting on a glacier, make a chasm appear in front of you to jump or to use for other purposes. Fighting in a forest, have an old forgotten and buried shrine appear during your chase. Fighting in a desert, have a sandstorm appear on the horizon coming on fast.
Sorry, no points for originality there, my friend. But you're making me want to play Exalted again. :)