[cookcounty]

"And you understand the resource is finite? We ruin water all the time - and we just can't make more.

So the EPA abolished the Water Cycle?

Are you also worried about all the oxygen being "ruined"?

[stormer]

There's this pesky thing called a water budget. What it boils down to (no pun intended), is that only a certain percentage of the planet's water is going to be available at any given time; when we trash that, we're screwed. Sure, we could pollute every drop of water on Earth, and sooner or later, it would be cleansed by natural processes - but we probably don't want to wait the several hundred of thousand years it's going to take.