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

[mooism.livejournal.com]

Yes, there’s no National Water Grid like there is for gas and electricity.

[lisekit.livejournal.com]

Now, why is that?

[philipstorry.livejournal.com]

I would imagine it's for two reasons:
1. Lack of economies of scale
2. Abundance of local water supplies in the British Isles when the water/sewage system was laid down originally

Why build a national grid when the water is collected nearby, stored nearby and used nearby?

Sadly, things are changing, and if not a national grid then some kind of north/south or west/south-east pipeline should probably be considered...