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Greg Pierce

@gregspierce

UCLA: Human Right to Water Solutions Lab, Luskin Center, Department of Urban Planning, Water Resources Group

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20.09.2023
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Latest posts by Greg Pierce @gregspierce

'The answer is clear: reduce demand through electric vehicles & better public transit... we need to open up California’s gasoline market & break apart the political stranglehold of the state’s oil industry. We don’t need half-baked answers that ignore the research and the data.'

09.03.2026 23:29 👍 6 🔁 3 💬 0 📌 0
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Oil built the Persian Gulf. Desalinated water keeps it alive. War threatens both As the Iran war widens, experts say the Middle East’s real strategic weak point may be water — not oil.

Understatement: “the threat is not hypothetical”

www.latimes.com/world-nation...

08.03.2026 22:13 👍 0 🔁 0 💬 0 📌 0

This story has everything, a focus on desal that led to overlooking other water sources, a city manager making $400K/yr saying don’t panic, a former water system manager saying residents should absolutely panic, and magical thinking: “The last hope to avert disaster was a 20- to 30-inch rainfall.”

08.03.2026 21:17 👍 352 🔁 175 💬 11 📌 14
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The audacious plan to refill the Great Salt Lake An ambitious goal to refill Utah’s Great Salt Lake by the 2034 Olympics is gaining momentum, with environmental groups, the Romney family and President Trump all in support.

www.yahoo.com/news/article...

08.03.2026 00:26 👍 1 🔁 0 💬 0 📌 1
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Persian Gulf desalination plants could become military targets in regional war Key sources of drinking water have been targets in past conflicts. And Iranian strikes have already hit close to some.

“The region’s monarchies are often described as petro-states, but they have also become what I call saltwater kingdoms, global superpowers in the production of human-made fresh water drawn from the sea.”

theconversation.com/persian-gulf...

07.03.2026 16:57 👍 12 🔁 7 💬 0 📌 0

Worth noting that investor-owned utilities in Maine outspent public power advocates 34:1. No wonder the latter's message was muffled! Legislative route makes sense. However, as my and others' research shows, investor-owned utilities are quite entrenched in state legislatures, too. (1/2)

06.03.2026 17:54 👍 6 🔁 4 💬 2 📌 0
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House approves bill to undo IRA efficiency programs Republicans have put forth a string of bills against federal energy efficiency programs and rules.

At a time everyone is complaining about electricity affordability, House GOP wants to eliminate programs that help low-and-middle income Americans reduce their electricity consumption:
www.eenews.net/articles/hou...

06.03.2026 16:04 👍 8 🔁 8 💬 0 📌 1
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Owners of fire-destroyed Palisades mobile home park seek to displace residents for development deal An offering memorandum described the destroyed mobile home park as a "blank canvas for redevelopment"; however, city officials reiterated they intend to let fire survivors return and rebuild.

The more things change...via @nohaggerty.bsky.social

The owner of the 170-unit mobile home park destroyed in the Palisades fire is trying to sell it, characterizing the lot as a "blank canvas for redevelopment" vs. re-occupation by currently-displaced residents.

www.latimes.com/environment/...

05.03.2026 21:52 👍 5 🔁 3 💬 0 📌 0

Perhaps you weren't able to absorb all ~10k words from our discussion paper.

Not to fret: co-author @edithdeguzman.bsky.social has created a more user-friendly table summarizing the 8 pathway options we discuss if you think any pathway should be pursued.

05.03.2026 19:23 👍 0 🔁 0 💬 0 📌 0
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Sea level much higher than assumed in most coastal hazard assessments - Nature Meta-analyses on a global scale show that the measured coastal mean sea level is higher than assumed in most coastal hazard assessments.

New paper out today suggests sea level rise may be substantially worse than we thought due to underestimates in models. What do all you slr modelers out there think of this paper??? www.nature.com/articles/s41...

04.03.2026 23:55 👍 6 🔁 2 💬 0 📌 0
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Pathways for California State Oversight of Water Systems for Wildfires | UCLA Luskin Center for Innovation A discussion paper on California state oversight options for community water systems and wildfire fighting, weighing pros, cons, and evidence-based tradeoffs.

Discussion paper: What is the function, if any, for statewide oversight (in the form of data collection, guidance, frameworks, and standards) of community water systems’ role in fighting wildfires? #cawater innovation.luskin.ucla.edu/publication/...

04.03.2026 17:37 👍 2 🔁 1 💬 0 📌 1
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Analyzing Southern CA Supply Investments from a Human Right to Water Perspective Author(s): Pierce, Gregory; Chow, Nicholas; Gmoser-Daskalakis, Kyra; Roquemore, Peter; Heil, Nichole | Abstract: As many water systems consider investing in new or enhanced sources of water supply to ...

escholarship.org/uc/item/3zk1...

03.03.2026 19:48 👍 0 🔁 0 💬 0 📌 0

We are finally getting close to actualizing this idea, which has been around.

Yet:

1. It's still not clear if/when this will get done
2. The devil is absolutely in the details around the terms of wholesale-retail-customer cost impacts, & ultimate pass-through effects (see our 2019 report)

03.03.2026 19:48 👍 1 🔁 0 💬 1 📌 0
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Flush with questions: Septic rules affecting West Marin homeowners under review - Local News Matters The county is updating the way it inspects and permits on-site septic systems. On Thursday, the public is invited to a West Marin community meeting to

Marin County is updating the way it inspects and permits on-site septic systems. On Thursday, the public is invited to a West Marin community meeting to gather public input on how its Local Area Management Program (LAMP) should be applied and improved. #cawater localnewsmatters.org/2026/03/02/f...

03.03.2026 17:47 👍 1 🔁 1 💬 0 📌 0
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Pathways for California State Oversight of Water Systems for Wildfires | UCLA Luskin Center for Innovation A discussion paper on California state oversight options for community water systems and wildfire fighting, weighing pros, cons, and evidence-based tradeoffs.

Have you been wondering: What is the function, if any, for statewide oversight of community water systems’ role in fighting wildfires?

We wrote a ~10k word discussion paper, outlining 8 potential pathways, specifically for you🔽

innovation.luskin.ucla.edu/publication/...

03.03.2026 17:47 👍 0 🔁 1 💬 0 📌 0

“ sanitation has already cost nearly $100 million”

02.03.2026 22:00 👍 1 🔁 1 💬 0 📌 0
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San Francisco lawmakers announce plan to 'break up' with PG&E Senate Bill 875 would enable San Francisco to finalize the purchase of Pacific Gas & Electric assets so that it can form a publicly owned utility in the area instead.

Will San Francisco finally get a chance to ditch Pacific Gas & Electric? A new bill in the state Legislature would let the city purchase PG&E's assets in the city and form a municipal utility: www.latimes.com/environment/... via @hayleysmith.bsky.social

27.02.2026 01:45 👍 52 🔁 22 💬 1 📌 2
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Why Biden-era clean energy investment policies had limited political returns | PNAS The Biden Administration enacted the largest federal policy framework to incentivize clean energy and decarbonization in U.S. history. We examine w...

Our paper is out in PNAS.

www.pnas.org/doi/10.1073/...

27.02.2026 03:50 👍 66 🔁 23 💬 2 📌 4

Here for the conversation

27.02.2026 01:11 👍 3 🔁 0 💬 0 📌 0
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Clear or compliant? The tension between regulatory requirements and public comprehension in boil water advisories Risk communications should provide clear messages to the public so people can take appropriate actions to protect their health and safety. Boil Water …

A very good article on threading the needle between accurate, accessible and compelling drinking water, quality risk communication

As the title implies, yes, there is a direct trade-off

www.sciencedirect.com/science/arti...

25.02.2026 19:56 👍 0 🔁 1 💬 0 📌 0
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Near-source wastewater surveillance as a non-invasive tool for disease detection in prisons - Scientific Reports Scientific Reports - Near-source wastewater surveillance as a non-invasive tool for disease detection in prisons

🚨 New publication in @natureportfolio.nature.com!!!

⏰ It’s taken a while, but sometimes good science takes time.

🚽 Near-source wastewater-based epidemiology is a game changer for public health surveillance in prisons.

www.nature.com/articles/s41...

23.02.2026 16:25 👍 5 🔁 5 💬 0 📌 0

Pretty incredible op ed piece from several rural county supervisors taking on Rep Gail Griffin’s actions on groundwater in their counties archive.is/2026.02.17-2...

19.02.2026 15:06 👍 3 🔁 2 💬 1 📌 1
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Water company's fire recovery plan gives Altadena residents sticker shock. Here's what's happening Las Flores Water Company will discuss its plans to stay solvent at a meeting Thursday night.

As Altadena rebuilds after devastating fires, small private water systems face impossible tradeoffs. Our senior director @gregspierce.bsky.social explains why these systems are “really on their own” — and why consolidation may be a more viable long-term path.

@laist.com: laist.com/news/climate...

19.02.2026 19:28 👍 2 🔁 1 💬 0 📌 1
Post image Post image

FREE well testing in Tulare County.

Breast Cancer Prevention Partners is partnering with CWC & UC Berkeley to study chemicals in domestic wells. Take an optional survey + get a $30 gift card. May qualify for free bottled water if contaminants are found.

📞 559-697-7375

19.02.2026 00:50 👍 0 🔁 1 💬 0 📌 0
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Seasonal variation of volatilized tetrachloroethene and trichloroethene concentrations in sewer systems in contaminated coastal landscapes Volatile organic compounds (VOCs) such as trichloroethene (TCE) and tetrachloroethene (PCE) are commonly detected in urban environments with legacy co…

We have a new paper out showing the impact of higher groundwater on VOCs in sewers, which creates an indoor air contamination risk.

As sea level rises, this is a potentially v serious public health risk at schools and older buildings w old plumbing seals.

www.sciencedirect.com/science/arti...

18.02.2026 22:51 👍 19 🔁 11 💬 2 📌 0

Countries that do not use Fritos as currency could be "left behind," says Frito-Lay CEO Ken Biddleman

18.02.2026 18:11 👍 5469 🔁 1097 💬 139 📌 22
Map from poweroutage.us of the Texas panhandle and adjacent areas. Multiple thousand customers have had their power turned off today to prevent downed power lines from sparking wildfires

Map from poweroutage.us of the Texas panhandle and adjacent areas. Multiple thousand customers have had their power turned off today to prevent downed power lines from sparking wildfires

Public safety power shutoffs (PSPS) have begun in the rural Texas panhandle. The strongest winds will kick in by early afternoon as cirrus continue to thin out.

17.02.2026 16:12 👍 6 🔁 3 💬 0 📌 0

Had me at "Hey dumb question for you"

17.02.2026 20:53 👍 0 🔁 0 💬 0 📌 0
Cadiz Mojave Groundwater Bank Northern Pipeline Project Selected to Submit Application for $194 Million WIFIA Loan Cadiz, CALIFORNIA (02.17.26) — Cadiz, Inc. (NASDAQ: CDZI / CDZIP, the “Company”) today announced that the U.S. Environmental Protection Agency (“EPA”) has selected the Mojave Groundwater Bank – Northe...

Hey look the federal government is backing what I have come to call "hands down, the worst idea in Southern California water", which is quite a distinction.

This seemed inevitable, but still:

cadizinc.com/cadiz-mojave...

17.02.2026 17:27 👍 1 🔁 2 💬 1 📌 0
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Cyprus appeals to residents to cut water use by two minutes a day amid drought Island’s reservoirs hit record lows even before tourist season starts as Cypriots are warned ‘every drop counts’

“The mean per capita consumption of water in Europe is 120 litres per person per day, but in some areas of Cyprus, being that much hotter, we have mean per capita consumption of 500 litres per day”

www.theguardian.com/world/2026/f...

16.02.2026 15:34 👍 1 🔁 0 💬 0 📌 0