WaterInTheWest: technical solutions to California’s water crisis

Stanford’s NewImageWaterInTheWest program is an important resource for anyone wishing to study technical solutions to the California water crisis. E.g., consider the possibility of artificial groundwater recharge?

Now in its third year, the current drought reminds us that California’s water supplies are limited. Calls are growing louder to enlarge dams – or build new ones – to expand the state’s water storage capacity. But far less attention is given to a cheaper but less visible option – storing water under our feet.

Groundwater storage represents both a practical solution to the state’s additional water storage needs and a tool to help manage groundwater more sustainably. Groundwater levels are continuing to decline across the state, not just from California’s current drought, but from decades of chronic overuse. Augmenting water supply through recharge into aquifers presents a cost-effective way of increasing the availability of groundwater for the inevitable dry times ahead.

There are so many water-related resources that I won’t attempt to summarize. Go to the WaterInTheWest site, explore. Then you will be better-equipped to address the really-big challenge: political change. 

We know from Economics 101 that any less-than-infinite water supplies will be squandered unless water is fully priced at its economic value (i.e., marginal cost equals marginal value). My understanding of the political challenge is that agriculture was given nearly-free access at the beginning of the water infrastructure development. The farmers are politically powerful enough to (so far) defeat every market-pricing initiative. Since agriculture consumes 80% of CA water we know that fiddling with household consumption is another “feel good” policy. Once California water consumers have to pay market prices, then technical solutions like artificial groundwater recharge become financeable.

That political change is possibly more difficult than getting US, EU, China, India, and Brazil to agree to a harmonized carbon tax. So the chance of a sensible CA water policy solution is approximately zero until things get seriously bad: perhaps when there are crop failures and people dying because they no longer have adequate access to sanitation and clean drinking water. That seems to be how democracies make unpleasant changes – at the cliff edge, or over the cliff.