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Posts by Todd Guilfoos

Future plans are to add in lead pipe maps and PFAS risk predictions.

Feel free to send me feedback as I improve it.

1 week ago 0 0 0 0
LinkedIn This link will take you to a page that’s not on LinkedIn

I've been working on a mobile app that lets you know what your environmental exposure is based on your location. It automatically looks up air, uv, drinking water violations, beach closures, ambient water quality, and superfund sites in the vicinity.

lnkd.in/e5cjiRi2

1 week ago 0 0 1 0
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World Annual Fresh Water Losses Could Supply 280 Million People New report links poor land and water management to accelerating freshwater loss

This story also claims that virtual water trading saved "10% of total global water consumption" since 2010. Maybe?? When shifting production there could appear to be savings (more efficient water use) yet more water is used overall by expanding the margins of use. I wonder what institutions save?

5 months ago 0 0 0 0
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New study of hydropower developmt vs flood risk at 107 hydropower dams finds 41% of the dams provide flood mitigation & 26% dams likely increase flood risks. Dams with shorter downstream river lengths tend to more flood-inducing than flood-protecting.

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

6 months ago 10 8 3 0

It is interesting how the same people who claim that vaccines don't have enough evidence of effectiveness are also completely convinced Tylenol causes autism

6 months ago 1 0 0 0

Elsevier has also decided to stop publishing Water Resource Economics (WRE) without discussion or warning to the editors. They seem to rather reckless in how they treat editors recently. Not sure why.

7 months ago 2 0 1 0
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Major city risks becoming the first modern capital to run out of water, NGO warns Afghanistan's capital city of Kabul has an existential water problem and other cities may also be vulnerable.

Kabul may run out of water in the next few years. This reminds me of Cape Town almost running out of water before considerable changes in behavior of residents in 2018

www.livescience.com/planet-earth...

7 months ago 0 0 0 0

I'm feeling really busy and anxious. I know... I'll spend an hour in a youtube hole and post about it on bluesky... that will help

8 months ago 1 0 0 0
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Academia is basically a collection of people who got lucky early on and mistook it for genius. doi.org/10.1073/pnas...

8 months ago 430 132 12 19
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Tehran Is at Risk of Running Out of Water Within Weeks

Iran has been in a #water crisis for a long time. That crisis is coming to a head.

www.nytimes.com/2025/07/26/w...

8 months ago 62 23 1 5
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If that was true, Joey Chestnut would've died 10 years ago.

8 months ago 64 2 2 0

This is one of the things that Elon didn't want, because Tesla sells these credits to other automakers to meet standards in the past. Also, bad for the environment

8 months ago 0 0 0 0

Demonstrates that quick and fast cooperation in PGGs do not necessarily extend to voting over prosocial rules, like sanctions.

9 months ago 0 0 0 0

New paper in JBEE with Jordan Suter. Time pressure and motivated delay effects on sanctioning in a social dilemma: Experimental evidence. This was primarily a null result in two separate experiments of cognitive manipulations on voting for sanctions over a PGG. authors.elsevier.com/a/1lR957tbfH...

9 months ago 1 0 1 0
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Historical Housing Prices Project The Historical Housing Prices (HHP) Project at the Philadelphia Fed provides new data on the price of housing for sale and for rent over the 20th century using the real estate sections of historical n...

New release for the HHP project. We now have rent and sales price indexes for 30 cities along with rental yields, capital gains, and housing returns for the years 1890-2006. Online data viz tools and download here:

www.philadelphiafed.org/surveys-and-...

9 months ago 80 22 3 6

Americans help each other. Let’s remember that.

9 months ago 3 1 1 0
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SCIMaP - Impacts of Federal Cuts to Science and Medical Research View Projected Impact of the FY2026 Budget Cuts to the NIH

A reminder of what Americans support via #CHIP50:

84% say we should invest the *same or more funding* for science research next year

90% say we should invest the *same or more funding* for medical research next year

Survey: www.chip50.org/reports/amer...

The WH disagrees
scienceimpacts.org/fy26

9 months ago 39 21 2 0
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GiveWell Real change for your dollar

Was wondering if there are any good evaluators of which environmental charities are the most effective in their work? Similar to givewell.org but for the environment?? #nature #charitynavigator

9 months ago 0 0 0 0
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A Spring in Every Kitchen We know how to produce clean water. Why don't we have enough of it?

I've been working on a series about the systems that undergird our lives. This one, about water, is personally important. Fresh water is our worst immediate environmental problem--and one that we've known how to solve for more than a century. That we don't is infuriating. (Paywall lifted for today)

11 months ago 55 31 1 2

We received the dismissal emails yesterday.

This report is congressionally mandated and aims to inform the US people about the impacts of climate change on the nation and what to do about it.

11 months ago 15 12 2 0
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AI is just like my dad, it makes up everything it doesn't know and states it as fact

11 months ago 1 0 0 0

If you start trade wars, it is smart to start it will all trading partners. This way you cripple your negotiating power compared to other countries who only have to deal with one trade war. #ArtoftheDeal

11 months ago 0 0 0 0
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US rejects Mexico’s request for water as Trump opens new battle front State department turns down special request to supply city of Tijuana in drought-affected north for first time ever

Trump opens up new water conflict with Mexico.

www.theguardian.com/us-news/2025...

1 year ago 54 26 3 0

California water economics is wild.

The Imperial Valley irrigation district pays $0/acre-foot for Colorado River water.
It charges valley agrobiz $20/acre-foot.
It charges San Diego, via a 2003 agreement, $730 acre-foot.
Why does San Diego pay?
Water from its desalination plant is $3,110/acre-foot.

11 months ago 21 6 3 0

This impact doesn't take into account additional cost of dental care (going to the dentist more often, purchasing fluoride toothpaste, etc.)

This impacts poor people the most. Can't afford the dentist, insurance, or fluoride toothpaste. It is a tax on the poor.

1 year ago 1 0 0 0

It has been discussed by RJK Jr. to remove fluoride from drinking water.

Calgary removed fluoride from their water in 2011. Unsurprisingly they find an increase in tooth decay seven years later. Larger than Edmonton where during the same time period that city kept it's fluoride program.

1 year ago 0 0 1 0
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What lies beneath the alpine lakes of #Alaska?
Crystal-clear waters and surreal colors create an otherworldly scene. These lakes stay clean and untouched thanks to the cold temperatures and little human activity.
[johnderting]

1 year ago 2595 310 77 2
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The Economic Origins of Government (October 2023) - We test between cooperative and extractive theories of the origins of government. We use river shifts in southern Iraq as a natural experiment, in a new archeological panel dataset. A...

these settlements paid tributes and built irrigation canals to inhabit settlements that would of otherwise been too dry. Cool paper by Allen, Bertazinni, and Heldring

www.aeaweb.org/articles?id=...

1 year ago 0 0 0 0

Interesting fact about water: early water development was responsible for formation of cooperative governance in Mesopotamia. Shifting of the Tigris and Euphrates rivers left settlements without water

1 year ago 2 0 1 0
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Microplastics discovered in caddisfly casings from the 1970s suggest long-term contamination A team of biologists working at the Naturalis Biodiversity Center, a research museum in the Netherlands, has found evidence of caddisfly larvae using microplastics to build their casings as far back a...

Microplastics are everywhere.

And have been for some time.

Caddisfly larvae have rocked them since the 70ties.

Microplastics have been in the food chain longer than many of us have been alive.

And we’re still acting like it’s news.

🌐 🦑 🐙 🧪

phys.org/news/2025-04...

1 year ago 33 8 0 0