On Mon, 26 Nov 2018 09:50:07 -0800 (PST), Cindy Hamilton
> wrote:

>On Thursday, November 22, 2018 at 11:00:22 AM UTC-5, graham wrote:
>> A US woman on the CBC this morning pointed out that bottled water is 96%
>> water and 4% plastic. Lettuce is 96% water and 4% cellulose etc.
>> Therefore, not only are square miles of good agricultural land being
>> wasted but also all that fuel used to transport "water" across the
>> country in refrigerated containers.
>
>Water is available everywhere. No point in transporting it.
>Lettuce doesn't grow everywhere all year. Makes sense to move
>it from where it grows to where people want it.
>
>Until we've built enough greenhouses to grow the 8 million pounds
>of lettuce that currently is grown in the Southwest.
>
>Cindy Hamilton

In the US lettuce grows most everywhere, albiet it's seasonal and
prefers cooler climes. These days a lot of lettuce (and other
produce) is grown in massive climate controlled greenhouses