[env-trinity] LA Times OpEd: In the water crisis, it's time to move beyond the farms vs. cities mindset
Kier Associates
kierassociates at att.net
Tue May 19 07:53:46 PDT 2015
Jay
Mr Johnson is simply re-chewing the same old cabbage, below.
Agriculture uses 80 percent of CA’s ‘developed’ water (if you’re a river advocate you simply leave the ‘developed’ out) or 40 percent of the total water that rises across CA’s 43 million acres (that’s the 40 percent figure that the ag advocates use)
Then he stumbles on to say that rivers are ‘nice’ – or something to that effect
But lost in Mr Johnson’s cabbage-chewing noise is that increment of CA water that is neither 1- ‘developed’; nor 2- specifically designated as ‘environmental’
Are North Coast river discharges to the ocean to be tallied in the ‘environmental’ column because (some) of them are in the W&S Rivers system? Or are they simply ‘undeveloped’ – neither fish nor fowl ?
I’ve been using the 80 percent too long to learn the new math
Bill Kier
From: env-trinity [mailto:env-trinity-bounces at velocipede.dcn.davis.ca.us] On Behalf Of Glase, Jay
Sent: Tuesday, May 19, 2015 6:23 AM
To: Sari Sommarstrom
Cc: env-trinity at velocipede.dcn.davis.ca.us
Subject: Re: [env-trinity] LA Times OpEd: In the water crisis, it's time to move beyond the farms vs. cities mindset
I've seen this graphic before, but have never seen a good description of how the numbers are determined. Does anyone know the math behind the figures in this graph? Since it's credited to DWR, I know there's a formula somewhere. Does this presume to account for all of the water that falls from the sky in any form, lands in California, and then goes somewhere? Does it account for evaporation, for water that stays in the mountain lakes of the Sierras and elsewhere, becomes groundwater, or is taken up and transpired by the douglas fir and ponderosa pine forests in the state?
If the argument is made that most comparisons are just for "developed" water, and that the comparison needs to be expanded, then the next question might be, where do you stop? If "the gross domestic joy generated by rivers" is considered a use of water, why not count the water that goes toward the bright green buds of new growth on a pine tree in the spring? Maybe the math gets too complex at that point, but surely someone has calculated how much water a pine tree can transpire into the atmosphere in a season of growth.
Hey, I just thought of something, is all the water that grows all the trees that are harvested in California part of the agricultural water?
Time for some more math?!
Cheers,
jay
On Mon, May 18, 2015 at 12:44 PM, Sari Sommarstrom <sari at sisqtel.net> wrote:
http://www.latimes.com/opinion/op-ed/la-oe-johnson-big-picture-california-water-20150517-story.html
Op-Ed: In the water crisis, it's time to move beyond the farms vs. cities mindset
By Nathanael Johnson
At this point, just about every Californian with a pulse knows that agriculture uses 80% of the state's water, and cities 20%. This talking point is true as far as it goes, but that's not very far. You have to limit your vision to the water consumed by humans, “developed” water. This perspective blinds us to the big water picture, and it sets up an unnecessary opposition between farms and cities.
How water is used in California
The 80/20 view of California water leaves out the water
required to keep riverine fish and riparian habitat alive. It
leaves out the freshwater flows needed to keep saltwater
from surging into the Sacramento-San Joaquin River
Delta. And it leaves out beauty and the gross domestic joy
generated by rivers.
Here's the complete picture: About 50% of California
water goes toward maintaining environmental quality,
40% goes to agriculture, and 10% goes to cities (including
business uses such as manufacturing). It can be
counterintuitive to think of the environment as a water
user — after all, that water is “used” only insofar as we
leave it in the rivers. But allowing water to flow down
rivers to the sea really is an active use with measurable
benefits. We devalue the environment if we leave it out of
the equation. And we can't judge the arguments for and
against such uses if we don't acknowledge that they exist.
Still, it's the ag/urban split that sticks in our minds.
Whether the figure is 80% or 40%, the fact that farms use
so much more water than cities evokes fury from those
who see farmers as robber barons, converting a natural
resource into private fortunes. There's a growing populist
sentiment that irrigation water is simply making rich
farmers richer.
This is by no means self-evident. It's worth noting that
public sentiment was once precisely reversed and
irrigation was seen as a democratizing force.
In 1870, giant dry-farmed wheat estates and cattle ranches
dominated the Central Valley. But with irrigation, a family
farmer could make a living on as little as 10 acres selling
vegetables, fruit and nuts. At that time, Californians saw
irrigation as a way to break up the land monopolies and
foster Jeffersonian farmers.
The reality, of course, is complex. In the beginning,
irrigation enriched the monopolists even more than small
farmers, but as Norris Hundley Jr. shows in his history of
the state's water, “The Great Thirst,” it also built up an
agricultural middle class in places such as Fresno, Merced
and Stockton. Irrigated agriculture provided for the
egalitarian beginnings of Anaheim, Riverside and Ontario.
It has been the means by which many immigrants —
German, Swiss, Armenian, Hmong and Mexican — have
made their stake in California.
And the situation remains complex today: Irrigation water
supports millionaires with giant tracts of land and middleclass
family farmers alike.
Another reason the 80% figure has gone viral is that it
contains an uncomfortable truth: It takes a lot of water to
grow food. Contrary to conventional wisdom, drip irrigation
systems and micro sprinklers do very little to
change a crop's consumption of water. It's true that less efficient
techniques like flood irrigation use more water,
but what isn't required by the plants isn't lost, it goes down
into the aquifer or back into the river. Increasing the
organic matter in soil — with techniques such as
composting, mulching and reduced plowing — can
improve water retention and lessen water use. But the
lion's share of irrigation water goes into the plants, and
that's hard to change. In the end, any cuts to irrigation
mean less food production.
Less food production means less economic activity. That's
not cause for panic: Agriculture accounts for just 2% of
California's massive economy. Nonetheless, California has
the highest agriculture sales of any state, and those sales
are the bulwark of many poorer counties. There are really
two Californias: a wealthy coast and a poor inland that
relies heavily on farmers.
Whenever there is a drought, farmers suffer first — they
idle land, pump groundwater. Each year, farmers have
been pumping up more water than seeps down, but a law
passed last year will change that. There will be even less
water for farmers as the new regulations put an end to
groundwater mining and the climate warms. There's no
getting around it: Those cutbacks will hurt.
In cities, by contrast, residents can cut water consumption
with much less pain. Los Angeles has kept its water
consumption flat since the 1980s while adding a million
residents, thanks to improved technology (low-flow
toilets!) and improved landscaping (these dry gardens are
far more beautiful than turf, in my humble opinion).
In a moment of crisis, it's human nature to look for
villains: Liberals against conservatives, north against
south, farms against cities. The 80/20 statistic neatly — far
too neatly — defines the conflict. But is the objective to
define our enemies and triumph over them, or do we want
to find solutions for the greater commonwealth?
If it's the latter, we should watch to ensure that our new
groundwater law results in rules for real sustainability,
move swiftly to restore water to residents whose wells have
gone dry, step up our water conservation efforts and stop
thinking in terms of them versus us. Most important, we
must continue California's leadership in fighting climate
change. It's misleading to zero in on part of the picture: If
we want holistic solutions, we have to take the holistic
view.
Nathanael Johnson, a Bay Area journalist, writes the
"Thought for Food" column at Grist.org. He is the author
of "All Natural" and a contributor to Harper's Magazine,
New York and "This American Life." Twitter:
@SavorTooth.
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