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Bjørn Ralf Kristensen

@bjornkristensen.com
613 followers 925 following 34 posts

Philosopher and interdisciplinary field researcher focused on animal ethics and the environmental humanities | Sawyier Fellow with the Center for the Study of Ethics in the Professions at Illinois Institute of Technology | 🐕 thinkingwithstreetdogs.com

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Reposted by Bjørn Ralf Kristensen
Aparna Nair @disabilitystor1.bsky.social · 27/03/2026
apparently Wikipedia has more rigorous standards than every university on the planet, university administrators, edtech enthusiasts, (certainly more than) AI bros, several prominent academic journals, and too many professors and teachers
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David Grimm @david-grimm.bsky.social · 25/03/2026
Puppies found at an ancient hunter gatherer site are now the world's oldest confirmed dogs. Their nearly 16,000-year-old bones push the definitive origin of dogs back almost 5000 years. My latest for @science.org!
science.org
World’s oldest dog identified at ancient hunter-gatherer site
Bones of 15,800-year-old puppy push confirmed origin of our canine companions back nearly 5000 years
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Bjørn Ralf Kristensen @bjornkristensen.com · 13/11/2025
On November 8, @ethicsiit.bsky.social at @illinoistech.bsky.social held our Ethics of Technology conference. Great to connect with many amazing international scholars, and to present my research incorporating John Dewey’s work on agency and architecture into ethical questions regarding urban animals
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Ethics Center at Illinois Tech @ethicsiit.bsky.social · 15/09/2025
Call for Abstracts: 2nd Sawyier Philosophy Conference on Ethics of Technology: Promises and Perils See full call for proposals and register for this free event at 2025sawyierconference.eventbrite.com
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Bjørn Ralf Kristensen @bjornkristensen.com · 14/06/2025
I recently had the opportunity to present some of my research on street dogs and multispecies waste relations at Waste Matters: The Many Afterlives of Junk conference in Helsinki. An amazing interdisciplinary conference focused on social, political, ethical, and aesthetic considerations of waste!
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Greg McElwain @gsmcelwain.bsky.social · 30/05/2025
Here is a piece on Mary Midgley that I wrote for the @apaphilosophy.bsky.social public philosophy blog! #marymidgley #philsky
blog.apaonline.org
Mary Midgley and The Necessity of Philosophy
Mary Midgley has become an increasingly prominent name in recent years. This could be attributed to her passing in 2018, which, along with the rise in Midgley and “Wartime Quartet” scholarship, has dr...
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Nicolas Alexandre @nicmalexandre.bsky.social · 21/05/2025
Take a look at @science.org's article describing our work in @globalchangebio.bsky.social showing that beak morphology of hummingbirds has changed in association with feeders! science.org/content/arti...
science.org
Bird feeders have caused a dramatic evolution of California hummingbirds
Beaks have grown longer and larger, and ranges have expanded to follow the feeders
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Philosophy Talk @philtalkradio.bsky.social · 16/05/2025
Ahead of this Sunday's episode on Mary Midgley, we sent our Roving Philosophical Reporter to explore Midgley’s ideas about animals and the Gaia hypothesis with @philosophellie from King's College London and Mara-Daria Cojocaru, Project Director of "Philosophy in the Wild." youtu.be/yraIY5Uhb98?...
youtu.be
Mary Midgley: Roving Philosophical Report
YouTube video by Philosophy Talk
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Bjørn Ralf Kristensen @bjornkristensen.com · 08/05/2025
Apparently the Vatican gulls have developed quite a media following! www.buzzfeed.com/briangalindo...
buzzfeed.com
Internet Reactions To The Seagulls On The Vatican Roof During The Conclave
The internet has officially canonized the seagulls as the real MVPs of the papal conclave.
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Bjørn Ralf Kristensen @bjornkristensen.com · 08/05/2025
What I really care about is obvious, because the first thing I noticed when I saw this breaking news was the seagulls. Currently the most visible birds on the planet.
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Brad Bolman @brad.bolman.com · 06/05/2025
Today is the day! My book Lab Dog is out from @uchicagopress.bsky.social a week early and you can find it wherever you find books. For @thedrift-mag.bsky.social, I put it in context with xenotransplantation, “trans rats,” & contemporary lab animal politics newsletter.thedriftmag.com/p/from-capit...
newsletter.thedriftmag.com
From capitalist pigs to poisoned puppies
Brad Bolman on the shifting politics of animal experimentation
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Bjørn Ralf Kristensen @bjornkristensen.com · 06/05/2025
Great to be connected, Robyn!
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Mark Hamill @markhamillofficial.bsky.social · 04/05/2025
Proof this guy is full of SITH.
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Modern Language Association @modernlanguage.bsky.social · 01/05/2025
The MLA, @acls1919.bsky.social, and @historians.org have filed a lawsuit in federal district court today, seeking to reverse the recent actions to devastate the National Endowment for the Humanities. www.mla.org/Resources/Ad...
mla.org
Joint Lawsuit over Dismantling of National Endowment for the...
(New York, NY) — The American Council of Learned Societies (ACLS), the American Historical Association (AHA), and the Modern Language Association (MLA) filed a lawsuit in federal district court today,...
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John M. Kinder @johnmkinder.bsky.social · 01/05/2025
#Zoos aren't woke, but they've never been apolitical. Check out a short piece I wrote for The Conversation. #worldwarzoos @uchicagopress.bsky.social theconversation.com/pandas-and-p...
theconversation.com
Pandas and politics − from World War II to the Cold War, zoos have always been ideological
Zoos aren’t woke, but they aren’t politically neutral, either.
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John R. Platt @johnrplatt.bsky.social · 28/04/2025
"Invasive species" -- the very term creates an "ethical shortcut" that makes killing non-native animals easier. (People, too.) @soljbrager.bsky.social explores this conundrum in a comic co-published today by @therevelator.org and @crucialcomix.bsky.social therevelator.org/invasive-swa...
therevelator.org
We Can't Kill Our Way Out of a Problem • The Revelator
As ecologists debate what to do about “invasive” swans in New York City, volunteers fight to keep them alive.
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Our World in Data @ourworldindata.org · 28/04/2025
Read Hannah’s article “You want to reduce the carbon footprint of your food? Focus on what you eat, not whether your food is local”: ourworldindata.org/food-choice-...
ourworldindata.org
You want to reduce the carbon footprint of your food? Focus on what you eat, not whether your food is local
“Eat local” is a common recommendation to reduce the carbon footprint of your diet. How does the impact of what you eat compare to where it's come from?
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Our World in Data @ourworldindata.org · 28/04/2025
While we might intuitively think that “food miles” — how far our food has traveled to reach us — play a big role, transport accounts for just 5% of the global emissions from our food system.
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Our World in Data @ourworldindata.org · 28/04/2025
Most food is transported by boat, so food miles are a relatively small part of the carbon footprint of most diets
A bar chart displaying information about global food miles and their associated greenhouse gas emissions. The chart has two main sections: the left side indicates the share of global food miles by mode of transportation, while the right side shows the greenhouse gas emissions in grams required to move one kilogram of food one kilometer.

- **Shipping** accounts for 59% of global food miles, with a low emission of 20 grams.
- **Road transport** is responsible for 31% of food miles, emitting 400 grams per kilogram.
- **Rail** contributes 10% to the total, with 60 grams of emissions.
- A small percentage, **0.2%**, represents food transported by air, which has the highest emissions at 1130 grams.

The chart suggests that shipping is a very carbon-efficient method of transporting food compared to other means. The data source is credited to Joseph Poore and Thomas Nemecek, 2018.
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George Monbiot @georgemonbiot.bsky.social · 28/04/2025
1. There has been a major effort by that old combination – big business and the far right – to diss foods derived from plants. The meat lobby invests big time in misinformation. And the far right hates “soyboys”, while associating itself with red meat-eating. It's a match made in hell. 🧵
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
There is an implicit feeling of trust I sensed while in close proximity to them that also feels a bit undeserved and heartbreaking given the role anthropogenic factors have had in the decline of their species over the last century.
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
African penguins have absolutely no fear of humans given that they have not evolved around land-based animals that would harm them.
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
Boulders Beach is a protected site where artificial nests have been constructed to supplement a lack of natural nesting sites, to facilitate breeding, and to keep them safe from predators and weather. It is a magical experience being surrounded by these highly intelligent and socially complex birds.
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
Many of them are starving to death because of drastically reduced fish stocks resulting from industrial fishing and climate change. Other factors contributing to their decline are coastal development, oil spills, and diseases such as bird flu.
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
Sadly, the African penguin has recently been reclassified as critically endangered. Populations have declined by 97% over the last 100 years, and there are currently fewer than 10,000 breeding pairs remaining. They are one of the most threatened seabirds in the world.
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Bjørn Ralf Kristensen @bjornkristensen.com · 28/04/2025
A belated post in honor of World Penguin Day on Friday. Here are a few photos from September of 2022 when I had the honor of visiting the African penguin colony at Boulders Beach in Cape Town, South Africa.
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Dannagal Goldthwaite Young @dannagal.bsky.social · 25/04/2025
People don’t need to “learn to use AI”. They need to learn how to think and make connections themselves and thus will facilitate their efficient use of whatever technology comes along. Crafting the right prompt for AI doesn’t take AI training, it takes liberal arts training.
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Bjørn Ralf Kristensen @bjornkristensen.com · 26/04/2025
A red-tailed hawk on campus today at the University of Oregon
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Animal Justice @animal-justice.bsky.social · 24/04/2025
Winnipeg will gas ground squirrels to death in public parks using toxic "Giant Destroyer" gas bombs starting May 20 💔 🐿️ Take action before April 30—urge Manitoba to reject this cruel plan & choose humane, non-lethal alternatives: ➡️ animaljustice.ca/GroundSquirrels
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University of Illinois Press @illinoispress.bsky.social · 23/04/2025
Ila and John Mellow Prize winner @bjornkristensen.com puts Dewey & Singer in conversation, focusing on commonalities/differences in their moral approaches, in particular conceptions of how individuals can be understood within moral problems. scholarlypublishingcollective.org/uip/pluralis...
Cover of The Pluralist: The Journal of the Society for the Advancement of American Philosophy, Volume 20, Number 1, Spring 2025
Blue and green background with table of contents
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Bjørn Ralf Kristensen @bjornkristensen.com · 23/04/2025
Thank you for sharing, @illinoispress.bsky.social. It was an honor to win the Mellow prize and to be part of this issue.
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Nature Portfolio @natureportfolio.nature.com · 22/04/2025
A paper in Nature Communications maps air pollution from power plants supplying electricity to US Bitcoin mines and finds that 1.9 million people in 2022-23 breathed toxic amounts of Bitcoin mine attributable pollution, particularly around New York City and Houston. 🧪
go.nature.com
The environmental burden of the United States’ bitcoin mining boom - Nature Communications
The paper maps air pollution from power plants supplying electricity to US Bitcoin mines. It finds that 1.9 million people in 2022-2023 breathed toxic amounts of Bitcoin mine attributable pollution, particularly around New York City and Houston.
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Bjørn Ralf Kristensen @bjornkristensen.com · 21/04/2025
If you want to read more about Major, Omar, and corner stories check out this article from @sfgate.com www.sfgate.com/food/article...
sfgate.com
This widely adored SF corner store is like a 'little village'
San Francisco has no shortage of corner stores. But there's only one with a famous dog mascot and a manager who will throw you a birthday party.
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Bjørn Ralf Kristensen @bjornkristensen.com · 21/04/2025
Major is ten years old, and has been at the store for much of his life, but over the past year and a half he has gained international fame via the Instagram account Omar runs featuring Major and the “corner stories” of many of the store’s visitors.
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Bjørn Ralf Kristensen @bjornkristensen.com · 21/04/2025
One of the highlights of my recent trip to San Francisco was meeting Major, who is perhaps the most famous dog in the city. His human, Omar, owns Key Food Market in Lower Haight, where Major “works” behind the counter and is a central part of the local community.
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Bjørn Ralf Kristensen @bjornkristensen.com · 17/04/2025
Excited to be in San Francisco for the American Philosophical Association Pacific division meeting! I’m part of a session this evening on new directions in American philosophy where I’m presenting some research on John Dewey and animal agency. #APAPacific25
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Anthrozooogy as International Practice (AIP) @azconference.bsky.social · 14/04/2025
Please share with students interested in #Anthrozoology #HumanAnimalStudies Call for papers closes 16 June: #AIP2025 is a perfect opportunity for 1st-time presenters to present, network, & learn. Check out website for FAQs & links to resources: anthrozoologyconference.com
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Defenders of Wildlife @defenders.org · 09/04/2025
Interior Secretary Doug Burgum is already celebrating the news of “de-extinction” technology as a win for conservation, but he’s forgetting our best de-extinction tool: the Endangered Species Act. We can’t Frankenstein our way into the future while we destroy our present. dfnd.us/4jt6mUU
dfnd.us
Genetic Technology Is No Solution for Species Loss
Secretary of Interior Doug Burgum quickly embraced the news of de-extinction technology Monday, as news broke of a bioscience engineering company genetically modifying gray wolf DNA to include charact...
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John R. Platt @johnrplatt.bsky.social · 10/04/2025
Nature Isn’t Binary: Discovering the World’s First Intersex Southern Right Whale • today on @the-revelator.bsky.social republished from @biographic.bsky.social therevelator.org/intersex-wha...
therevelator.org
Nature Isn’t Binary: Discovering the World’s First Intersex Southern Right Whale • The Revelator
What you think you know about the world depends on how you’re looking.
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University of Illinois Press @illinoispress.bsky.social · 07/04/2025
The Pluralist 20.1, is here with Society for the Advancement of American Philosophy (SAAP) 2024 Conference Proceedings! Check it out for contributions from @bjornkristensen.com @osopher.bsky.social and more! scholarlypublishingcollective.org/uip/pluralis...
Cover of The Pluralist: The Journal of the Society for the Advancement of American Philosophy, Volume 20, Number 1, Spring 2025
Blue and green background with table of contents
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Bjørn Ralf Kristensen @bjornkristensen.com · 22/03/2025
Happy to see the latest issue of The Pluralist in print, which includes my paper on Dewey, Singer, and Effective Altruism!
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Bjørn Ralf Kristensen @bjornkristensen.com · 19/03/2025
So cool to be in Helsinki when President Zelenskyy of Ukraine happened to come to town! 🇺🇦
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Bjørn Ralf Kristensen @bjornkristensen.com · 15/03/2025
Thanks to Public Hygiene Lets Us Stay Human (PHLUSH) for highlighting the installation exploring a multispecies approach to sanitation that I co-developed with Kory Russel and Audrey Rycewicz for the Venice Biennale of Architecture. www.phlush.org/designing-fo...
phlush.org
Designing for a Shared Reality: What is a Multispecies Approach to Sanitation?  - Phlush
Designing for a Shared Reality: What is a Multispecies Approach to Sanitation?  By: Kory Russel   At a Venetian Palace overlooking the grand canal, an unexpected exhibit highlighted a universal truth—...
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Bjørn Ralf Kristensen @bjornkristensen.com · 25/02/2025
I'm happy to share that my paper, "Consequentialism in the Work of John Dewey and Peter Singer: Considering the Case of Effective Altruism" has been published in The Pluralist. muse.jhu.edu/pub/34/artic...
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Eurogroup for Animals @eurogroupforanimals.org · 21/02/2025
We wrote a letter to FIFA about the killing of stray dogs in Morocco! 🚨 Find out what's happening 👇 www.eurogroupforanimals.org/news/fifa-ur...
eurogroupforanimals.org
FIFA urged to take stand against culling of dogs ahead of World Cup
Animal protection organisations are appalled at claims that Morocco plans to cull millions of street dogs ahead of co-hosting the 2030 World Cup, and are appealing to FIFA to take a stand.
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Bjørn Ralf Kristensen @bjornkristensen.com · 18/02/2025
Their days are often spent sleeping or passively taking in their surroundings. Brunito—an ever-present fixture of Cusco’s historic center—spends his time in the busiest parts of the city, seemingly taking comfort in the chaotic backdrop of human life to which he is largely an unnoticed background.
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