@rivkafidel.bsky.social
Career track professor teaching #soil and #environmental science in Tucson, Arizona. 🌵 #biochar #biogeochemistry #soilchemistry Unapologetic feminist scientist 👩🔬 and ally 🌈 Opinions my own
What's more shocking than ICE's plan to cram as many 8,500 humans into massive, soul-crushing warehouses?
Seeing the actual DHS floor plan that echoes slavery ships and history's worst gulags with no rec space but a gun range for guards
My new column on the camps www.inquirer.com/opinion/ice-...
One of the most important details in all of transportation and climate policy.
21.02.2026 15:21 — 👍 18 🔁 10 💬 2 📌 0
Holy fuck! 🧪
www.science.org/doi/10.1126/...
Sarah clearly saw it though 🤔
19.02.2026 14:58 — 👍 1 🔁 0 💬 1 📌 0
"We can have democracy in this country, or we can have great wealth concentrated in the hands of a few, but we can't have both." –Justice Louis Brandeis
Words spoken many years ago that are just as relevant today.
We must continue the fight to get big money out of politics.
Less than 6 months after publishing, our 🪱 Introduction to Soil Science Second Edition 📙 textbook has hit...
3k downloads ⬇️
7k readers 📚
15k views 👀
🎉
#Soil #SoilScience #OpenAccess #OER
🙏 Thank you Amber Anderson and @openaccesselder.bsky.social
Check it out here 👇
doi.org/10.31274/isu...
ProPublica received eight handwritten letters from children who have been held at the detention center that 5-year-old Liam Conejo Ramos was recently released from.
We'll let their words speak for themselves.
Yes I'm no plant expert (soil scientist here) but they seem to be Phacelia campanularia, also known as California Bluebells
en.wikipedia.org/wiki/Phaceli...
Hummingbird-like moth hovers over vibrant blue flowers with round green leaves
Sphinx Moth enjoying some Desert Bells
15.02.2026 02:11 — 👍 63 🔁 8 💬 2 📌 0
Map from ECMWF ensemble showing cooler than average temperatures across most of the western United States over a 5-day period about a week from now.
The first storm of the much-anticipated pattern shift brought widespread rain to CA, with some modest mountain snowfall in Sierra Nevada and points east. After a couple of quieter days, a sequence of much colder storms will follow (with much larger mountain snowfalls).
13.02.2026 20:46 — 👍 120 🔁 32 💬 3 📌 2
Bluesky is the new science Twitter, new study by @whysharksmatter.bsky.social and Julia Wester concludes!
"Results show that for every reported professional benefit that scientists once gained from Twitter, scientists can now gain that benefit more effectively on Bluesky than on Twitter."
The Trump administration on Thursday revoked a scientific finding that climate change is a danger to public health, an idea the president called "a scam."
Repeated scientific studies say it's a documented and quantifiable harm. https://to.pbs.org/4ctVHJ7
Whoever that is, my past self blocked the heck of them XD
14.02.2026 00:26 — 👍 30 🔁 0 💬 2 📌 0
We are hiring an Assistant or Associate Professor in Indigenous Environmental Governance and Management. Very excited for this position.
Please circulate widely among your networks:
www.sfu.ca/rem/about/em...
#academia #HigherEd #AcademicSky
Friends from Minneapolis reporting to me that things are at the point where folks are being hidden in other people's houses and we are in the "again" part of "never again" which the "never" was supposed to preclude
10.02.2026 22:54 — 👍 27143 🔁 9616 💬 56 📌 358
Autocracy Loading 40% ⏳
#NotTooLate #DefendDemocracy #Resist
✊
Gift link:
www.nytimes.com/interactive/...
A global map showing that most people don't talk about or hear about climate change regularly (except in Scandinavia - I believe this is the Greta Effect!). Source: Yale Program on Climate Change Communication.
A global map showing that most people are worried about climate change. Source: Yale Program on Climate Change Communication.
Most people are worried about climate change - but most don't hear or talk about regularly.
That's why I started my free newsletter Talking Climate. Every week I share good news, not so good news, and what people can do.
If you aren't a reader yet, see below. I have 6 different ways to subscribe!
The pretender will come no more
youtu.be/dPkxZ6pbz_c?...
What's glossed over a bit here is it took this guy who proved it like 25 years and a huge community push and tons of advocacy to make this happen. Same with guy who figured out you should wash hands before surgery. We think "why should all this obvious shit be so hard?" But it's ALWAYS been hard
02.02.2026 21:33 — 👍 806 🔁 303 💬 1 📌 5Alt text: students and community members gather at a rally on the UA Mall. They hold #IceOut themed signs and are mostly facing away from the camera, facing a speaker up front who's hard to see from this distance.
31.01.2026 04:48 — 👍 0 🔁 0 💬 0 📌 0
Today at the University of Arizona #IceOut #NoKings #Solidarity ✊
31.01.2026 04:45 — 👍 6 🔁 3 💬 1 📌 0...my chemist friend suggested Petra
31.01.2026 00:17 — 👍 5 🔁 0 💬 1 📌 0
Channer? Alas, also too small...
Reggie, short for Regolith?
Tweet from Batya Ungar-Sargon: "Beyond disgusting. Gov. Walz is comparing the innocent Jews that the Gestapo were hunting for extermination—who were citizens—to the illegal migrant murderers, rapists, sex offenders, and child abusers that ICE is seeking to deport because they broke our laws again and again."
It is literally false that the Jews being hunted by Nazis were citizens, because the first step toward genocide was stripping them of citizenship and making them stateless. As Arendt reminds us, citizenship is a legal category created to facilitate a machinery of exclusion of the out-group.
28.01.2026 04:18 — 👍 2186 🔁 588 💬 52 📌 63
Microsoft had pledged to save water. But now, driven by the artificial intelligence frenzy, the tech giant is projecting that water use at its data centers will more than double by 2030 from 2020, including in places that face shortages.
29.01.2026 03:40 — 👍 167 🔁 97 💬 20 📌 14
Folks, I'm getting married! Next weekend!
I'd love to spead the good news around. Here's a list of science, conservation, and education charities I love, and instructions on how to donate in our honor if you're so moved.
Please share!
WHO removing Us Flag
23.01.2026 21:45 — 👍 7832 🔁 3500 💬 637 📌 623
Branching scenarios make for great assessments: show the implications of the choice, ask questions that allow the student to unpack those implications. Playing with H5P as a way to capture the students' rationale as they progress through the branching scenario. #EduSky #AcademicSky #EdTech
23.01.2026 01:58 — 👍 3 🔁 1 💬 0 📌 0
United States Completes WHO Withdrawal WASHINGTON — January 22, 2026 — The U.S. Department of Health and Human Services and the U.S. Department of State today announced the United States’ completion of its withdrawal from the World Health Organization (WHO) due to the organization's mishandling of the COVID-19 pandemic that arose out of Wuhan, China, its failure to adopt urgently needed reforms, and its inability to demonstrate independence from the inappropriate political influence of WHO member states.
The United States has officially withdrawn from the World Health Organization.
This is a shameful move that puts both Americans and people all over the world at greater risk from disease outbreaks, which require international collaboration to contain.
So all colleges and universities will bring back the DEI stuff they cut when obeying in advance right...............................................................................................................................................right?
21.01.2026 19:42 — 👍 1060 🔁 392 💬 8 📌 8