Whilst Government Environmental Consciousness?

What sort of ethical or moral commitment does a government have to the environment? Does it matter if it's the federal, state, or local government? This story from Treehugger about the GOP's disdain for the EPA speaks to a certain contingent's notions about these concerns. Of course, I read the Treehugger account after a class discussion on public transportation, one that used Portland's TriMet as a jumping off point. Pretty cool TriMet video below.