Why is it a good idea to save water?

[ghoti_mhic_uait]

I've seen lots of people saying "Save water, it's good for the environment!" over the years. I've looked and looked and mostly ignored them (although was happy when the dropped 'turn the tap off when you're washing your hands - really not compatible with 'shower, not bath').

Water is a renewable resource, right? It goes through the sewer system, into the rivers or sea, evaporates and returns as rain. Or it goes through the sewer system and returns to our taps.

My region hasn't had a hosepipe ban since the 70s because of our good reserviors.

So why is it a good idea to save water? I've never actually managed to find an explanation, including now through google.

Comments

energy

[ewx.livejournal.com]

It also needs pumping from reservoir to home, and the pipes which it goes through need maintenance (both to keep it clean and to avoid pointlessly transporting it to somewhere useless then leaking it), etc etc etc.