Sea Level Rise-driven Saltwater Intrusion Could Impact Coastal Real Estate Values

As sea level rises, coastal cities and towns are growing increasingly concerned that fresh water sources used for drinking water, wastewater treatment, agricultural irrigation, and industry could be fouled by saltwater intrusion. Saltwater intrusion occurs when higher sea level forces saltwater inland at the surface or underground through porous rock and sand. When the salt water reaches fresh water intakes on rivers or underground wells, the fresh water become unfit for human consumption and most other uses.

According to a study published in the Journal Nature, millions of Americans live in coastal communities at risk of losing access to fresh water due to saltwater intrusion. KCRA in San Francisco aired a report last week that examined the threat saltwater intrusion poses to the state’s Central Delta waterways.

As sea level rises, it threatens to push salty ocean water up into delta rivers and estuaries that provide drinking water to 27 million California residents as far away as Southern California. The water is also used to irrigate the Central Valley’s farmland.

Sea level rise isn’t the only contributor to the saltwater intrusion problem. The West’s ongoing mega-drought is also drawing down river levels, which could potentially hasten the inland movement of saltwater from the sea. The only way to prevent this is by releasing more water from reservoirs or the construction of a barrier to block the saltwater, which California is trying on the West False River.

The threat to real estate owners and buyers in all of this is that any community that loses access to fresh water is a community in distress. This could cause real estate values to plummet. Clearly everyone involved in coastal real estate needs to be aware of where their fresh water comes from and how safe it is from saltwater intrusion.

Earth Day is a Call to Action!

Repeating “Happy Earth Day” to family and friends today isn’t enough. The holiday is, in fact, a call to action for us all to do what we can to save the planet from climate change and pollution.

For years, Earth has been flashing a RED ALERT about global warming. Oceans, the atmosphere and the land are heating up. As a result, we’re seeing mega-droughts, hotter and longer heat waves, fierce wildfires, stronger more damaging storms, rapid snow and ice melt in Antarctica and Greenland and sea level rise flooding.

To stop global warming, we need to curtail the burning of fossil fuels — coal, oil and natural gas — that release greenhouse gases. We can all play a role by conserving energy. Here’s how:

1. Drive only when necessary, consolidate trips and share the ride.

2. Purchase the most fuel efficient vehicles we can afford and ride public transportation when available.

3. Weather-proof our homes and offices.

4. Buy energy-efficient appliances.

5. Turn off lights and electronics that aren’t in use.

6. Buy only goods we actually need.

7. Eat a more plant-based diet.

8. Vote ONLY  for candidates who are dedicated to fighting climate change.

The last point is critically important. Leaders on the federal, state and local levels are setting the policies that will (or won’t) allow us to reduce and nearly eliminate the use of fossil fuels. We need strong, motivated leaders to get the job done.

Together, we can prevent the climate change catastrophe we’re headed for if we don’t act aggressively to combat it. The time to for us all to start is NOW!

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