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Katharine Gammon

@kategammon.bsky.social
7.4K followers 650 following 57 posts

Science, health, tech, environment journalist writing for The Guardian, The Atlantic, Nautilus, Forbes and others. Living by the beach. Katharinegammon.com

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Katharine Gammon @kategammon.bsky.social · 08/09/2026
I loved speaking with JP about what it was like to grow up without science mentors who looked or sounded like him, and how he found his path to chemistry. His story is truly inspiring!
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Katharine Gammon @kategammon.bsky.social · 16/07/2026
This is from two years ago, but sadly still relevant: Every part of the body is affected by wildfire smoke. There is evidence that its pollution can move through the placenta and impact a developing fetus’s brain, lungs and liver. www.theguardian.com/us-news/arti...
theguardian.com
As wildfires rage, what is the smoke doing to our health and bodies?
Scientists are discovering just how toxic wildfire smoke is to the body – here’s what to know and how to stay safe
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Katharine Gammon @kategammon.bsky.social · 09/06/2026
Environmentally burdened communities typically lack information about what they’re breathing, but Pacoima is bucking the trend with hyperlocal monitoring. This spring, I spent time following around the effort. Thanks to @chjreportinghealth.bsky.social for funding! www.theguardian.com/us-news/2026...
theguardian.com
This US neighborhood is full of hazardous air pollution. Can a network of sensors make ‘the invisible visible’?
Pacoima is hemmed in by highways and heavy industry, and its residents are fighting pollution with hyperlocal air quality monitoring
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Katharine Gammon @kategammon.bsky.social · 16/04/2026
I'll be at the LA Times Festival of books this Saturday talking with @peterbrannen.bsky.social, @laurapoppick.bsky.social and Dillon Osleger about their books. Come say hi if you are at bookchella! www.latimes.com/events/festi...
latimes.com
Los Angeles Times - Festival of Books | 2025 Participants
Participants » Festival of Books 2025 » L.A. Times - Festival of Books
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Pam Kan-Rice @ucanrpam.bsky.social · 28/03/2026
“You could haze a coyote and it could just look at you, and if it had a middle finger, it would essentially raise it,” Niamh Quinn @ucanr.edu tells @kategammon.bsky.social “Or you could haze a coyote and it could put its tail between its legs and not look back.” www.theguardian.com/us-news/2026...
theguardian.com
Wily coyote? Urban canines take more risks compared with rural ones, study finds
Researchers believe behavioral gap, which may hold true across species, is probably product of less fear of harassment in cities
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Katharine Gammon @kategammon.bsky.social · 08/01/2026
How much should you worry about toxins like lead deposited in your soil after a fire? And how can you get your yard or garden tested? I wrote about it, for @calmatters.org: calmatters.org/environment/...
calmatters.org
Five things to know about testing, cleaning contaminated soil after wildfires
Testing for toxic chemicals and heavy metals is available in Los Angeles County from philanthropic groups, researchers, and the public health department, after the 2025 wildfires. Learn more here.
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Katharine Gammon @kategammon.bsky.social · 17/11/2025
I had a great time chasing around parrots in LA for this story -- and ultimately, these nosy, colorful additions to the city are a reminder that many of us come from elsewhere. www.theguardian.com/environment/...
theguardian.com
These parrots came to Los Angeles as pets – then went wild. Now scientists are unlocking their mysteries
Once escapees from the pet trade, Los Angeles’s feral parrots have become a vibrant part of city life, and could even aid conservation in their native homelands
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Katharine Gammon @kategammon.bsky.social · 14/11/2025
It's such a thrill to be in this group. Looking forward to seeing everyone's projects develop.
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Katharine Gammon @kategammon.bsky.social · 01/10/2025
Jane Goodall was a massive inspiration. Seeing that animals are actually just like us allows people to find empathy in so many parts of the natural world.
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Keili Bartlett @keilibartlett.bsky.social · 26/06/2025
As Jaws turns 50, @kategammon.bsky.social takes a look at the science advisor behind the movie -- and how what he did after Jaws transformed our understanding of sharks again. In @nautil.us: nautil.us/the-shark-wh... 🦈
nautil.us
The Shark Whisperer
Donald Nelson spent his life undoing the damage that Jaws did to the perception of sharks.
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Katharine Gammon @kategammon.bsky.social · 06/06/2025
I traveled down to Orange County to drink some water that had, just an hour before, been ice-tea-colored sewage. Spoiler alert: the water tasted like water. www.theguardian.com/environment/...
theguardian.com
‘Tastes like water’: how a US facility is recycling sewage to drink
A California project can turn sewage into drinking water in less than an hour and could be a blueprint for other water-scarce regions
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Helen Branswell 🇨🇦 @helenbranswell.bsky.social · 02/05/2025
This is likely the weirdest and most interesting story you could read today. From @usha.bsky.social. www.statnews.com/2025/05/02/d...
statnews.com
Snake enthusiast survived hundreds of bites. Now his blood is aiding the search for a universal antivenom
Blood from a snake enthusiast who's been bitten hundreds of times aided the search for a universal snakebite treatment
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Katharine Gammon @kategammon.bsky.social · 01/05/2025
For @sierramagazine.bsky.social, I wrote about some tiny hopeful news: a lot of climate projects are baked into the DOD's goals, so even though the word climate may not appear, "mission readiness" includes those efforts -- both now and in the future. www.sierraclub.org/sierra/2025-...
sierraclub.org
Why the Best Place for Climate Science Might Be at the Department of Defense
Expect the DOD to swap the words "climate change" for "military preparedness"
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Katharine Gammon @kategammon.bsky.social · 28/04/2025
Such a pleasure to speak with Alan, Susan and Lawrence about their beautiful works of science and personal narrative. Read these books!
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Katharine Gammon @kategammon.bsky.social · 25/04/2025
Very excited to moderate a panel with Lawrence Ingrassia, Susan Weiss Liebman, Alan Townsend at the LA Times Festival of Books this weekend. Say hi if you're around Sunday! #latfob events.latimes.com/festivalofbo...
events.latimes.com
Participants » Festival of Books 2025 » L.A. Times - Festival of Books
Find your favorite authors and celebrities in this alphabetical list of this year’s participants. View the schedule to learn more about each event.
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Ed Hawkins @edhawkins.org · 21/04/2025
“Never have we so hurt and mistreated our common home as we have in the last two hundred years. Reducing greenhouse gases requires honesty, courage and responsibility. Those who will have to suffer the consequences will not forget this failure of conscience and responsibility.” — Pope Francis
Pope Francis receiving a warming stripes stole. Photo: Vatican Media
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Darren Incorvaia @megadarren.bsky.social · 08/04/2025
“De-extinction” is to biodiversity loss what “Mars colonization” is to climate change—wishful thinking that is at its core impossible but nevertheless sucks up attention and resources from actual solutions to these crises (which, ultimately, might be the whole point)
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Michael del Castillo @delcastillo.bsky.social · 06/04/2025
America’s arteries are clogged. THIS is the solution: ‘Even a freeway is redeemable’: world’s largest wildlife crossing takes shape in Los Angeles: www.theguardian.com/us-news/2025... by @kategammon.bsky.social via @theguardian.com #borderless
theguardian.com
‘Even a freeway is redeemable’: world’s largest wildlife crossing takes shape in Los Angeles
A wildlife crossing across the 101 freeway will connect two parts of the Santa Monica mountains for animals
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Ben Goldfarb @bengoldfarb.bsky.social · 01/04/2025
"Bluefish tuna were overfished in the mid-Atlantic this month because NOAA did not issue the regulation to close the fishery after fishermen filled the quota in mid-January." Who could have predicted this! 🤷‍♂️ www.reuters.com/world/us/how...
reuters.com
How Trump’s regulatory freeze is disrupting the US fishing industry
From the Atlantic to Alaska, fishermen say overfishing and fleet delays are shaking up a $320 billion industry.
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David Ho @davidho.bsky.social · 30/03/2025
This is cool. The Guardian recreated a searchable climate future risk tool (wildfire, extreme heat, drought, hurricane, and coastal flood) for the US that was developed by FEMA but deleted by the Trump administration’s ‘climate’ purge.
theguardian.com
Trump’s ‘climate’ purge deleted a new extreme weather risk tool. We recreated it
The Guardian has recreated a searchable climate future risk tool developed by Fema but then deleted
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Katharine Gammon @kategammon.bsky.social · 31/03/2025
Also in the post-fire environmental world: surfers, swimmers and beachgoers have been worried about what is lurking in the ocean after the fire debris runoff. Some answers have finally appeared: www.theguardian.com/us-news/2025...
theguardian.com
‘God knows what’s in the water’: Los Angeles surfers in limbo as wildfire toxins linger
In a city where surfing is a way of life, the wait to get back in the water has been agonizing. But new research offers a glimmer of hope
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Katharine Gammon @kategammon.bsky.social · 31/03/2025
When the fires raged through LA, air toxins popped off the charts. But the AQI was often in the "good zone." That's because traditional air quality monitoring systems don't catch everything -- but some newer tech can. I wrote about it, for @sciam: www.scientificamerican.com/article/urba...
scientificamerican.com
As fires burned in Los Angeles this year, newer toxin monitors found contaminants not measured by standard methods
As fires burned in Los Angeles this year, newer toxin monitors found contaminants that aren’t measured by standard methods. Now scientists and officials are pushing for better detection
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Virginia Gewin @virginiagewin.bsky.social · 24/03/2025
“We can see with our own eyes how extreme heat and extreme weather are harming people’s health,” said Veena Singla, an adjunct assistant professor at Columbia University’s Mailman School of Public Health.
propublica.org
NIH Ends Future Funding to Study the Health Effects of Climate Change
It’s unclear whether the guidance will impact active grants, but it appears to halt opportunities for future studies. One climate health expert said the directive would have a “devastating” impact on ...
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Katharine Gammon @kategammon.bsky.social · 20/03/2025
I wrote about new research showing that fish in the wild can recognize individual divers -- and why we should be considering fish as individuals, too. For @nautil.us: nautil.us/when-fish-fo...
nautil.us
When Fish Follow You
Some wild fish may recognize individual humans in the sea
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Katharine Gammon @kategammon.bsky.social · 18/03/2025
I love this move by @wired.com and hope other publications will follow. Public records (like public lands!) belong to all of us.
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Katharine Gammon @kategammon.bsky.social · 17/03/2025
For a story: Have you tried to bring in eggs from Mexico? I'd love to hear the tale. DMs open.
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Katharine Gammon @kategammon.bsky.social · 12/03/2025
I wrote about new research showing the megalodon -- star of screens everywhere -- was not, in fact, a chonky ancient monster but instead a slender torpedo. That's because being giant -- 80 feet long -- makes it important to swim efficiently through the water. nautil.us/what-megalod...
nautil.us
What Megalodons Tell Us About Gigantism
The biggest predator ever to have lived was a skinny beast
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Katharine Gammon @kategammon.bsky.social · 05/03/2025
My dad worked for NOAA and went to sea for six weeks at a time when I was little. When he finally came back, my brother and I would get these weird little cups with our names on them. Every single time.
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Brooke Jarvis @brookejarvis.bsky.social · 03/03/2025
ProPublica looked into science grants that Ted Cruz's team flagged as "radical" and "neo-Marxist" and, uh. This would be good comedy if it didn't matter so much www.propublica.org/article/ted-...
"Developing a device that could treat severe bleeding. It seems to have caught the committee’s attention for using the words “victims” — as in gunshot victims — and “trauma.”
Creating biosensors to detect infectious diseases. The grant appears to have been tagged for the repeated use of “POC,” an acronym often used for “people of color” but in this context meaning “point of care” — that is, the place where people receive medical treatment — and “barrier,” referring to a part of the biosensor itself.
Designing eye-tracking technology for diagnosing and treating concussions. It appears to have gotten flagged for referencing “traumatic” brain injuries and the “status,” meaning the condition, of patients."
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Katharine Gammon @kategammon.bsky.social · 25/02/2025
For Nautilus, I wrote about a duo turning tree rings into art -- and exploring the deep history of science: nautil.us/the-language...
nautil.us
The Language of Tree Rings
Turning tree ring science into art
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Virginia Gewin @virginiagewin.bsky.social · 19/02/2025
“Toxic contaminants from the wildfire debris could leach into the soil and the waterways. Onshore winds will undoubtedly carry these hazardous particulates, compromising the air quality where people live, work and play.” Story by @kategammon.bsky.social
theguardian.com
‘An unprecedented situation’: EPA plan for LA wildfire cleanup stirs protests over toxic dangers
Demonstrators have protested against an expedited cleanup process that would involve using a beloved beach as a toxic waste sorting site
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Kevin M. Kruse @kevinmkruse.bsky.social · 09/02/2025
Whenever you hear someone sneer about scientific research that seems useless to them — “they’re studying the spit of lizards?!” — remind them that’s exactly how we got Ozempic. globalnews.ca/news/9793403...
globalnews.ca
How a Canadian scientist and a venomous lizard helped pave the way for Ozempic - National | Globalnews.ca
In 1984, Dr. Daniel Drucker, an endocrinologist from the University of Toronto, discovered a hormone that helped pave the way for popular diabetes drugs such as Ozempic.
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Robert Macfarlane @robgmacfarlane.bsky.social · 30/01/2025
"In every living thing there ticks a clock...": @david-farrier.bsky.social superb & unsettling on how "wild clocks"––spruce saplings, oyster colonies, reindeer herds––are falling out of synchronization as the Earth transforms. It’s becoming harder to keep time. emergencemagazine.org/essay/wild-c...
emergencemagazine.org
Wild Clocks – David Farrier
Attentive to the loss of age-old ecological relationships as “wild clocks” fall out of synchronization with each other, David Farrier imagines an opportunity to renew the rhythms by which we live and ...
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Lila Seidman @lilaseidman.bsky.social · 27/01/2025
This has been a devastating month, on a personal level and for all of LA. A bright spot was getting to witness the recent rescue of hundreds of tidewater gobies -- tiny endangered fish -- from a lagoon scorched by the Palisades fire. www.latimes.com/environment/...
latimes.com
Hundreds of tiny endangered fish saved from Palisades burn area — in the nick of time
More than 750 tidewater gobies were rescued from a Malibu lagoon scorched by the Palisades fire. Seared watersheds can take years to recover, experts say
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Katharine Gammon @kategammon.bsky.social · 27/01/2025
Only one mammal in California had never been photographed alive -- until three undergrads decided to find the Mount Lyell shrew in the eastern Sierra. It only took 150 traps and three freezing nights. I wrote about their journey, here: www.theguardian.com/us-news/2025...
theguardian.com
The framing of the shrew: California students photograph mammal never caught on film
Three young scientists set traps to capture and film species of special concern in move that can help conserve the shrew
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Brian Kahn @blkahn.bsky.social · 22/01/2025
“They were asking when food in the fridge had spoiled,” she said, as if it was possible to check expiry dates when her house had been reduced to ash. State Farm also repeatedly called and asked for the vehicle identification number of her car, even though she told them it had completely melted.
bloomberg.com
LA Fires Revive Trauma for Homeowners Battling Insurance Claims
People who’ve lost their homes have faced yearslong battles to recover payouts as insurers deal with a surge in claims arising from more destructive wildfires.
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Katharine Gammon @kategammon.bsky.social · 19/01/2025
I wrote for the Atlantic about the ash raining down on LA, and how the risks of the "disaster after the disaster" are still coming into view: www.theatlantic.com/health/archi...
theatlantic.com
L.A. Is Coated in Ash
No one knew exactly how to deal with it.
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Katharine Gammon @kategammon.bsky.social · 13/01/2025
I kept seeing this horrific footage of the fires through home cameras, so wrote about the intimacy of watching climate disasters in other peoples' homes for @atmosmagazine.bsky.social: atmos.earth/home-cameras...
atmos.earth
Home Cameras Offer ‘Horror Movie Moments’—and Essential Help—Amidst LA Fires | Atmos
Home cameras are livestreaming climate disasters with unprecedented intimacy, fanning grief and anxiety for many.
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Katharine Gammon @kategammon.bsky.social · 12/01/2025
For a story, I'm looking for people who used home cameras to see the fires while safely away - is this you? Would love to connect.
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Katharine Gammon @kategammon.bsky.social · 10/01/2025
I wrote about the winds, dry reservoirs, lack of personnel and other issues facing firefighters in Los Angeles, for @theguardian.com: www.theguardian.com/us-news/2025...
theguardian.com
What are the unprecedented conditions facing firefighters in LA?
Fire crews are facing dire challenges, hurdles that have intensified the fires and are complicating the response
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Shannon Osaka @shannonosaka.bsky.social · 09/01/2025
Pretty amazing that nonprofit Watch Duty -- which says it has 150 volunteers working around the clock to track wildfires -- has become the most trusted source of information on LA fires. Operated by retired/volunteer firefighters, dispatchers, and reporters. Real people. www.watchduty.org
watchduty.org
Watch Duty - Wildfire Maps & Alerts
Watch Duty, a 501(c)(3) nonprofit, alerts you of nearby wildfires and firefighting efforts in real-time.
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Katharine Gammon @kategammon.bsky.social · 09/01/2025
This is true. LA County has a population greater than that of 40 individual U.S. states.
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Katharine Gammon @kategammon.bsky.social · 09/01/2025
Interesting to notice that in a day where almost no one went out in Santa Monica (we are close to the evacuation zone), two reliable forces still came through: our neighborhood postal worker and yard guys still arrived to do their jobs.
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Katharine Gammon @kategammon.bsky.social · 08/01/2025
Watching the skies darken with smoke from the Palisades fire. Here's a piece I wrote last year on what smoke does to our bodies. Smoke is worse than car pollution for our health. www.theguardian.com/us-news/arti...
theguardian.com
As wildfires rage, what is the smoke doing to our health and bodies?
Scientists are discovering just how toxic wildfire smoke is to the body – here’s what to know and how to stay safe
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Eric Holthaus @ericholthaus.com · 08/01/2025
The emergence of extreme wintertime wildfires in California is one of those classic “this is climate change” moments: A specific set of weather conditions is now occurring in such a way to produce the potential for rare disasters to become much more common. www.fastcompany.com/91256483/the...
fastcompany.com
The horrifying L.A. wildfires are being fueled by the worst conditions January has ever seen
Southern California is experiencing a midwinter drought at the same time as dangerous Santa Ana winds, leading to a wildfire in the Pacific Palisades.
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Katharine Gammon @kategammon.bsky.social · 07/01/2025
For @nautil.us I wrote about the famines of our ancestors, and how they leave an indelible mark on our bodies, even four or five generations later. nautil.us/you-are-what...
nautil.us
You Are What Your Ancestors Didn’t Eat
The impact of famine may be written in the bodies of future generations
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Kate Schapira: "Well Put & Generalizable" @kateschapira.bsky.social · 23/12/2024
An early & thoughtful conversation about LESSONS FROM THE CLIMATE ANXIETY COUNSELING BOOTH was conducted (in the orchestral sense) by @kategammon.bsky.social nautil.us/tame-your-cl...
nautil.us
Tame Your Climate Anxiety in 2024
A poet invited people to share their climate fears. What she found surprised her.
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Katharine Gammon @kategammon.bsky.social · 17/12/2024
For @sierramagazine.bsky.social, I wrote about computer science and environmental research joining forces. www.sierraclub.org/sierra/2024-...
sierraclub.org
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MIT Graduate Program in Science Writing @mitsciwrite.bsky.social · 15/11/2024
We also love this @kategammon.bsky.social, '07, feature on hungry, hungry sea lions hakaimagazine.com/features/her... @rachelfritts.bsky.social, '20, deep diving into a mysterious 19th century sea monster in Maine hakaimagazine.com/article-shor...
hakaimagazine.com
The Mystery of the 19th-Century Maine Marine Monster | Hakai Magazine
Before cameras and submersibles were commonplace, scientists had to rely on fishermen for intel on ocean creatures.
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Brooke Jarvis @brookejarvis.bsky.social · 15/11/2024
Fun facts about milk regulation: before we had it, milk often carried tuberculosis and other infections and killed literally thousands of children every year. To make it seem drinkable producers added plaster dust, liquefied calf brains, and formaldehyde. www.smithsonianmag.com/science-natu...
smithsonianmag.com
The 19th-Century Fight Against Bacteria-Ridden Milk Preserved With Embalming Fluid
In an unpublished excerpt from her new book The Poison Squad, Deborah Blum chronicles the public health campaign against tainted dairy products
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