Todd Guilfoos
@tgfoos.bsky.social
Water economist at University of Rhode Island. Water, history, cooperation, and institutions. Interests include running, basketball, celtics, and cycling.
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?
World Annual Fresh Water Losses Could Supply 280 Million People
New report links poor land and water management to accelerating freshwater loss
www.worldbank.org
November 5, 2025 at 12:22 AM
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?
Reposted by Todd Guilfoos
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/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
September 25, 2025 at 8:26 PM
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/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
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
September 25, 2025 at 4:40 PM
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
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...
www.livescience.com/planet-earth...
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.
www.livescience.com
September 10, 2025 at 12:55 AM
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...
www.livescience.com/planet-earth...
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
August 13, 2025 at 11:06 PM
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
Reposted by Todd Guilfoos
Academia is basically a collection of people who got lucky early on and mistook it for genius. doi.org/10.1073/pnas...
August 4, 2025 at 11:26 AM
Academia is basically a collection of people who got lucky early on and mistook it for genius. doi.org/10.1073/pnas...
Reposted by Todd Guilfoos
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...
www.nytimes.com/2025/07/26/w...
Tehran Is at Risk of Running Out of Water Within Weeks
www.nytimes.com
July 28, 2025 at 7:55 PM
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...
www.nytimes.com/2025/07/26/w...
Reposted by Todd Guilfoos
If that was true, Joey Chestnut would've died 10 years ago.
July 28, 2025 at 1:49 PM
If that was true, Joey Chestnut would've died 10 years ago.
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
July 28, 2025 at 6:46 PM
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
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...
authors.elsevier.com
July 16, 2025 at 6:00 PM
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...
Reposted by Todd Guilfoos
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-...
www.philadelphiafed.org/surveys-and-...
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...
www.philadelphiafed.org
July 16, 2025 at 1:02 PM
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-...
www.philadelphiafed.org/surveys-and-...
Reposted by Todd Guilfoos
Americans help each other. Let’s remember that.
GoFundMe has set up a page for the Texan flood victims. Each campaign has been verified by the company's Trust & Safety experts, which means you know your money is going directly to families. Please consider donating if you can. Their stories are heartbreaking.
www.gofundme.com/c/act/flood-...
www.gofundme.com/c/act/flood-...
Donate to US Flood Relief Fundraisers
Help those affected by flooding across the US. Donate to verified fundraisers to offer flood relief to individuals & their families.
www.gofundme.com
July 5, 2025 at 10:21 PM
Americans help each other. Let’s remember that.
Reposted by Todd Guilfoos
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
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
SCIMaP - Impacts of Federal Cuts to Science and Medical Research
View Projected Impact of the FY2026 Budget Cuts to the NIH
scienceimpacts.org
July 3, 2025 at 3:50 PM
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
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
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
GiveWell
Real change for your dollar
givewell.org
July 3, 2025 at 11:55 PM
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
Reposted by Todd Guilfoos
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)
A Spring in Every Kitchen
We know how to produce clean water. Why don't we have enough of it?
www.thenewatlantis.com
May 1, 2025 at 1:51 PM
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)
Reposted by Todd Guilfoos
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.
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.
Breaking News: The Trump administration dismissed all the scientists working on the government’s premiere report on the effects of climate change in the U.S.
National Climate Assessment Authors Are Dismissed by Trump Administration
The Trump administration told researchers it was “releasing” them from their roles. It puts the future of the assessment, which is required by Congress, in doubt.
www.nytimes.com
April 29, 2025 at 11:32 AM
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.
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.
AI is just like my dad, it makes up everything it doesn't know and states it as fact
April 24, 2025 at 1:00 PM
AI is just like my dad, it makes up everything it doesn't know and states it as fact
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
April 24, 2025 at 12:21 PM
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
Reposted by Todd Guilfoos
Reposted by Todd Guilfoos
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.
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.
April 22, 2025 at 9:02 PM
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.
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.
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.
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.
April 22, 2025 at 6:10 PM
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.
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.
Reposted by Todd Guilfoos
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]
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]
April 21, 2025 at 7:25 PM
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]
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]
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
April 21, 2025 at 9:40 PM
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
Reposted by Todd Guilfoos
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...
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...
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...
phys.org
April 18, 2025 at 8:44 PM
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...
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...
Reposted by Todd Guilfoos
I enjoyed sharing my research on ancient water governance in South Asia with prospective students in Environment, Economics and Ecology @uoyenvironment.bsky.social.
Grappling with all kinds of data, like #archaeology, gives us a unique take on #sustainability.
Join to learn more! @york.ac.uk
Grappling with all kinds of data, like #archaeology, gives us a unique take on #sustainability.
Join to learn more! @york.ac.uk
April 2, 2025 at 3:27 PM
I enjoyed sharing my research on ancient water governance in South Asia with prospective students in Environment, Economics and Ecology @uoyenvironment.bsky.social.
Grappling with all kinds of data, like #archaeology, gives us a unique take on #sustainability.
Join to learn more! @york.ac.uk
Grappling with all kinds of data, like #archaeology, gives us a unique take on #sustainability.
Join to learn more! @york.ac.uk