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Sharon Udasin

@sharonudasin.bsky.social
5.9K followers 435 following 195 posts

Environment reporter + co-author of the new #PFAS book, Poisoning the Well.

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Sharon Udasin @sharonudasin.bsky.social · 24/08/2026
It was a pleasure getting to speak in-depth about Poisoning the Well and the #PFAS crisis with Mitch Jelniker at the Arapahoe Libraries Let's Find Out podcast! Link in first comment.
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Sharon Udasin @sharonudasin.bsky.social · 04/08/2026
Part 2 in a series of timely #PFAS explainers: this one exploring the toxic legacy of AFFF, a foam long used to fight jet fuel-based fires. Great working with Andrea Gerlak of the @uarizona.bsky.social's Udall Center! earth.org/decades-of-u...
earth.org
How PFAS-Based Firefighting Foam Left Behind a Toxic Legacy | Earth.Org
As states ban toxic AFFF firefighting foams, federal delays and lingering contamination leave local communities waiting years for a fix.
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Sharon Udasin @sharonudasin.bsky.social · 19/07/2026
New neighbor 🐻
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Sharon Udasin @sharonudasin.bsky.social · 08/07/2026
First installment in a series of timely #PFAS explainers: this one delving into the critical role of the ordinary citizen. It was a pleasure to write this with Adriana Zuniga-Teren of @uarizona.bsky.social!
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Sharon Udasin @sharonudasin.bsky.social · 27/06/2026
Eldorado Canyon was just beautiful today, after finally getting some rain.
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Sharon Udasin @sharonudasin.bsky.social · 03/06/2026
Just a couple ducks in residential Southeast Boulder.
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Sharon Udasin @sharonudasin.bsky.social · 01/06/2026
Well, that was terrifying. We were just about to land on the Denver runway, when a #cowx wind shear combined with microburst sent us taking off again midair, and after circling, diverted for refueling in Colorado Springs. Thanks to the United captain for keeping us safe.
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Sharon Udasin @sharonudasin.bsky.social · 25/05/2026
Definitely beats last year’s #bolderboulder weather!
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Rachel Frazin @rachelfrazin.bsky.social · 19/05/2026
Bonus: if you want to learn more about forever chemicals and how we got here, @sharonudasin.bsky.social and I wrote a book on the topic! And it's currently 50% off! press.princeton.edu/books/hardco...
press.princeton.edu
Poisoning the Well
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Rachel Frazin @rachelfrazin.bsky.social · 18/05/2026
Trump administration proposes to allow some delays for ‘forever chemical’ regulations #GreenSky thehill.com/policy/energ...
thehill.com
Trump administration proposes to allow some delays for ‘forever chemical’ regulations
The Trump administration is proposing to allow some delays to the deadline for water systems to regulate toxic “forever chemicals.”  Under current regulations, water systems are required to fi…
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Sharon Udasin @sharonudasin.bsky.social · 06/05/2026
After a dangerously dry winter, Boulder has a snow day on May 6.
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Sharon Udasin @sharonudasin.bsky.social · 01/05/2026
In a turbulent time for journalism, it's a privilege to get to teach such a motivated group of kids every week. Thank you to the Boulder Valley School District, Impact on Education and everyone at High Peaks Elementary School for this honor!
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Rachel Frazin @rachelfrazin.bsky.social · 10/04/2026
I can’t believe it has been a YEAR since our book about forever chemicals came out I feel like over last year, awareness about toxic PFAS has grown and if our book played even a small part, I will consider it a huge honor #BookSky #GreenSky
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Sharon Udasin @sharonudasin.bsky.social · 13/03/2026
Excited to be speaking about #PFAS and Poisoning the Well at both the Tucson Festival of Books and at @uarizona.bsky.social in the next few days! #booksky
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Island Press @islandpress.bsky.social · 27/02/2026
See @sharonudasin.bsky.social at Birmingham Public Library tomorrow (Feb 28) at 11:00am CST for a free discussion of her book, Poisoning the Well, and the proliferation of forever chemicals in consumer products and their devastating effects on us and our environment Learn more here: buff.ly/dylqOaD
Sharon Usadin, co-author of Poisoning the Well: How Forever Chemicals Contaminated America, at the Birmingham Public Library on Saturday, February 28th from 11:00 am - 12:30 pm CST for an author talk
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Sharon Udasin @sharonudasin.bsky.social · 20/02/2026
Next week, Poisoning the Well heads to Georgia & Alabama! From 2/24 to 3/2, I'll be giving 10 #PFAS talks, starting at @emoryrollins.bsky.social. Link w/ all details in the thread.
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Island Press @islandpress.bsky.social · 20/02/2026
See @sharonudasin.bsky.social at Birmingham Public Library next week, Feb 28 at 11:00am CST for a free discussion of her book, Poisoning the Well, and the proliferation of forever chemicals in consumer products and their devastating effects on us and our environment Learn more here: buff.ly/dylqOaD
Sharon Usadin, co-author of Poisoning the Well: How Forever Chemicals Contaminated America, at the Birmingham Public Library on Saturday, February 28th from 11:00 am - 12:30 pm CST for an author talk
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Sharon Udasin @sharonudasin.bsky.social · 16/02/2026
I guess I can thank Covid for earning me a full five minutes of cat cuddles
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Coyote Gulch @coyotegulch.bsky.social · 16/02/2026
Interior Department moves forward on guidelines for #ColoradoRiver absent full state consensus -- USBR #COriver #aridification coyotegulch.blog/2026/02/15/i...
coyotegulch.blog
Interior Department moves forward on guidelines for #ColoradoRiver absent full state consensus — USBR #COriver #aridification
Udall/Overpeck 4-panel Figure Colorado River temperature/precipitation/natural flows with trend. Lake Mead and Lake Powell storage. Updated through Water Year 2025. Note the tiny points on the annu…
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Sharon Udasin @sharonudasin.bsky.social · 05/02/2026
This is part of an 8-day regional tour that starts in Atlanta and ends in Huntsville. More details on all the talk locations soon!
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Sharon Udasin @sharonudasin.bsky.social · 16/01/2026
Opening night of Fiddler on the Roof at the Dairy Arts Center! #Boulder
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Sharon Udasin @sharonudasin.bsky.social · 05/01/2026
It’s always a treat to visit Dewey Decimal call number 363.7384 (Social sciences ➡️ Social problems and social services ➡️ Other social problems and services ➡️ Environmental problems ➡️ Environmental problems ➡️ Pollutants ➡️ Toxic chemicals) @boulderlibrary.bsky.social
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Sharon Udasin @sharonudasin.bsky.social · 19/12/2025
The winds are starting to pick up in #Boulder and physio balls are rolling down the street. 🍃🪩 #cowx
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Sharon Udasin @sharonudasin.bsky.social · 16/12/2025
Thank you to the @boulderpolice.bsky.social and @bouldercolorado.bsky.social for helping the Jewish community feel safe enough to light up the darkness on this second night of #Chanukah!
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Sharon Udasin @sharonudasin.bsky.social · 12/12/2025
Thank you to Prof. Frank von Hippel of the University of Arizona for having me on the Science History Podcast to talk about Poisoning the Well and the history of #PFAS! sciencehistory.libsyn.com/episode-97-f...
sciencehistory.libsyn.com
Science History Podcast: Episode 97. Forever Chemicals: Sharon Udasin
Today's episode is a discussion on the history of PFAS, or forever chemicals, including their accidental development, incorporation into commercial products, concerns about health effects, and environ...
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Sharon Udasin @sharonudasin.bsky.social · 09/12/2025
Thank you to Booklist for including us on the Editors’ Choice list for 2025, describing Poisoning the Well as an "eye-opening chronicle of the disastrous medical and environmental effects of forever chemicals."
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Rachel Frazin @rachelfrazin.bsky.social · 09/12/2025
Just learned that Booklist put Poisoning the Well on its Editors’ Choice list for 2025! What an honor!! 🎉 #booksky #greensky
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Sharon Udasin @sharonudasin.bsky.social · 09/12/2025
#Boulder sunrise run was particularly colorful today
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Sharon Udasin @sharonudasin.bsky.social · 06/12/2025
Despite the residual ice, at this point, I think we should start calling the #ColderBolder the WarmerBolder, brought to you by climate change.
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Sharon Udasin @sharonudasin.bsky.social · 03/12/2025
Well, today’s #Boulder morning run looks a little different! ❄️
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Sharon Udasin @sharonudasin.bsky.social · 02/12/2025
#Boulder morning runs unfiltered 🏃🏻‍♀️🌄
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Sharon Udasin @sharonudasin.bsky.social · 18/11/2025
Residents of #Longmont & #Boulder: there are just a few seats left for my #PFAS talk this Thursday, 11/20, at the Longmont Public Library at 6pm! Please register: longmontcolorado.gov/event/author...
longmontcolorado.gov
Author Talk: Sharon Udasin, author of Poisoning the Well: How Forever Chemicals Contaminated America - City of Longmont
Join us for a talk with Sharon Udasin, author of Poisoning the Well: How Forever Chemicals Contaminated America. In the book Udasin and coauthor Rachel Frazin trace an ugly history of corporate greed,...
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Sharon Udasin @sharonudasin.bsky.social · 12/11/2025
Aurora in #Boulder
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Sharon Udasin @sharonudasin.bsky.social · 10/11/2025
Thank you to Liz at the Sterling Spin and @longmontmedia.bsky.social for the chance to talk about Poisoning the Well and #PFAS! youtube.com/watch?v=LFlz... #Longmont residents: to hear more about the book, please come to the library on 11/20 at 6pm! Register: longmontcolorado.gov/event/author...
youtube.com
The Sterling Spin - Episode 32 - Sharon Udasin - Forever Chemicals
YouTube video by Liz Sterling
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Sharon Udasin @sharonudasin.bsky.social · 09/11/2025
Morning run along the Animas 🏞️🍂🍁
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Sharon Udasin @sharonudasin.bsky.social · 08/11/2025
Little girl meets some Great Sand Dunes.
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Rachel Salvidge @rachelsalvidge.bsky.social · 03/11/2025
NEW: Risky levels of forever chemicals in the raw drinking water sources of at least 6 million people prompted the Drinking Water Inspectorate to order water companies to act to ensure it doesn't make it to the tap. 1/2 Covered today on the BBC and... www.bbc.co.uk/news/article...
bbc.co.uk
Firms ordered to reduce forever chemicals in drinking water for 6m people - BBC News
The persistent pollutants which build up in the environment have been linked to serious illnesses.
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Food & Water Watch @foodandwater.bsky.social · 29/10/2025
We got to hear directly from @rachelfrazin.bsky.social and @sharonudasin.bsky.social, authors of “Poisoning the Well: How Forever Chemicals Contaminated America”. Now, you can watch a recording of our discussion with them right here. ⬇️
foodandwaterwatch.org
The Human Toll of PFAS "Forever Chemicals"
Check out our conversation with Sharon Udasin and Rachel Frazin, authors of Poisoning the Well, on how PFAS forever chem
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Sharon Udasin @sharonudasin.bsky.social · 29/10/2025
Shameless push for this again, since we are now #10 in Environmental Policy!
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Sharon Udasin @sharonudasin.bsky.social · 27/10/2025
If you haven't read our #PFAS book, Poisoning the Well, Amazon inexplicably dropped the price to $9.29 (it's $30 everywhere else; not sure how long this will last!). Please consider getting a copy! Link in thread. #booksky
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Sharon Udasin @sharonudasin.bsky.social · 11/10/2025
Bringing #PFAS awareness to #Cheyenne in my first-ever visit to #Wyoming. Will be at the Laramie County Local Authors Celebration this afternoon! lclsonline.org/event/local-...
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Rachel Frazin @rachelfrazin.bsky.social · 10/10/2025
Today marks six months since my book, Poisoning the Well, was published. ICYMI: @sharonudasin.bsky.social and I took a deep dive into a family of toxic ‘forever chemicals’ that have become a pervasive environmental crisis #PFAS #GreenSky #BookSky
A cover of the book "Poisoning the Well" by Rachel Frazin and Sharon Udasin. It's a yellow cover with a barrel of chemicals in the middle with an american flag on it
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Food & Water Watch @foodandwater.bsky.social · 09/10/2025
Have you signed up for our live chat with @rachelfrazin.bsky.social and @sharonudasin.bsky.social – authors of “Poisoning the Well: How Forever Chemicals Contaminated America” – yet? RSVP to join us next Wednesday: fwwat.ch/3Vij0fi
fwwat.ch
Poisoning the Well by Sharon Udasin and Rachel Frazin: an Author Talk [Livable Future LIVE] · Food & Water Watch
Join Food & Water Watch for a virtual conversation with **Rachel Frazin and Sharon Udasin**, authors of *Poisoning the Well: How Forever Chemicals Contaminated America.* Frazin and Udasin’s insightfu...
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Food & Water Watch @foodandwater.bsky.social · 01/10/2025
PFAS pollution can feel overwhelming, but everyday people are fighting back. Join @rachelfrazin.bsky.social and @sharonudasin.bsky.social, authors of “Poisoning the Well: How Forever Chemicals Contaminated America”, at this month’s Livable Future Live on October 15 to learn more: fwwat.ch/3Vij0fi
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Sharon Udasin @sharonudasin.bsky.social · 19/09/2025
Only at Colorado School of Mines could I get a pair of #PFAS socks after doing a book talk. Thank you to Chris Higgins for hosting me!
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Sharon Udasin @sharonudasin.bsky.social · 19/09/2025
September 18 and #Boulder backyard blooms are still bountiful, no filter necessary 🌸🌺🌼
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Sharon Udasin @sharonudasin.bsky.social · 07/09/2025
#Boulder sunrise runs 🌅🏃🏻‍♀️
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Sharon Udasin @sharonudasin.bsky.social · 29/08/2025
Incredible double-arch, backyard rainbow in #Boulder after monsoon rainfall ⛈️🌈 #cowx
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Sharon Udasin @sharonudasin.bsky.social · 28/08/2025
Scientists warn San Diego County air laced with toxic ‘sewer gas’ thehill.com/homenews/sta...
thehill.com
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Sharon Udasin @sharonudasin.bsky.social · 28/08/2025
Will the cost of #PFAS cleanup stay with the polluters? Or will the EPA shift the burden back to the public? Big questions raised in this NYT story. www.nytimes.com/2025/08/28/c...
nytimes.com
An Industry Insider’s Changes at the E.P.A. Could Cost Taxpayers Billions
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