Quote:
Originally Posted by calf
How does a low-flow shower head save on CO2 emissions? Less energy spent on water treatment, pumping, etc?
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Technically yes, those things.
However, the benefit to the environment from those things is essentially zero.
Yes, we need to take care of our fresh water, but in Calgary, that extra water goes down the drain, gets treated, and goes back into the river cleaner than when it came out.
For thing like showering, lower flow doesn't necessarily reduce the total water consumption as much as one might think. Rinsing hair, etc requires a certain amount of total water, not just "stick your head under the shower for 5 seconds"