Tereza Jarníková
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tjarnikova.bsky.social
Tereza Jarníková
@tjarnikova.bsky.social
430 followers 60 following 37 posts
Oceanographer from a landlocked country, marine biogeochemical models at the University of East Anglia. bikes on good days.
Posts Replies Media Videos
Reposted by Tereza Jarníková
pepcanadell.bsky.social
1/2

We just published the Global Carbon Budget 2025, with a mix of bad news (CO2 emissions continue to grow) and encouraging news (35 countries saw emissions decline over the past decade while growing their economies).

Read the highlights in a short article:
theconversation.com/the-worlds-c...
November 13, 2025 at 12:16 AM
tjarnikova.bsky.social
A sidequest I had fun with last month: these colourmaps from old Czechoslovak railways posters. Feel free to use them! tjarnikova.github.io/sklad/rail-c...
November 3, 2025 at 4:27 PM
Reposted by Tereza Jarníková
katharinehayhoe.com
If you take the time to read the whole Gates memo (which I did), the bulk of the content was mostly solid and encouraging. Really!

It was the FRAME that was off--very off, from the first line.

And when your framing is off, then how you make decisions and set priorities is off. THAT'S the problem.
My quote from an Axios interview, stating that: People often think of climate change as a separate bucket at the end of a long row of other buckets of problems we're trying to fix that are wrong in the world," Hayhoe told Axios. This includes poverty, disease and access to clean water. "Climate change is not a separate bucket," Hayhoe said. "The reason we care about climate change is that it's the hole in every bucket."
October 30, 2025 at 1:52 PM
tjarnikova.bsky.social
New phytoplankton colourmap just dropped

(**ignore the edge effects (or tell me how to regrid such that they don't happen))
October 10, 2025 at 5:07 AM
Reposted by Tereza Jarníková
vargaslab.bsky.social
⭐️Nominate an Impactful Dataset

@agu.org invites you to nominate an impactful dataset!

📊Submissions will be considered for inclusion in an upcoming featured commentary published in AGU Advances.

Submit nominations by 20 October.

docs.google.com/forms/d/e/1F...

@agubiogeosciences.bsky.social
Nominate an Impactful Dataset
You are invited to nominate a dataset to be included in a commentary about the impact of Earth, space, and environmental data using the dimensions of people, planet, and prosperity. Selected submitter...
docs.google.com
October 5, 2025 at 6:32 PM
Reposted by Tereza Jarníková
mktippett.bsky.social
I have downloaded
the tiny files
that were in
your national data center

and which
you were probably
hoping
no one would touch

Forgive me
they were all such tiny files
and so very slow
and yet they added up
July 29, 2025 at 4:44 PM
Reposted by Tereza Jarníková
luckytran.com
NEW: Hundreds of NASA employees have filed a letter of formal dissent.

"We are compelled to speak up when our leadership prioritizes political momentum over human safety, scientific advancement, and efficient use of public resources. The consequences for the agency and the country alike are dire."
The Voyager Declaration Dear Interim Administrator Duffy, In light of your recent appointment as Interim NASA Administrator, we bring to your attention recent policies that have or threaten to waste public resources, compromise human safety, weaken national security, and undermine the core NASA mission. We, the signatories of this letter, dissent from these policies, and raise these concerns because we believe strongly in the importance of NASA's mission, which we are dedicated to uphold. Major programmatic shifts at NASA must be implemented strategically so that risks are managed carefully. Instead, the last six months have seen rapid and wasteful changes which have undermined our mission and caused catastrophic impacts on NASA's workforce. We are compelled to speak up when our leadership prioritizes political momentum over human safety, scientific advancement, and efficient use of public resources. These cuts are arbitrary and have been enacted in defiance of congressional appropriations law The consequences for the agency and the country alike are dire. Our Shared Commitment to Dissentin� Opinions We share a commitment to dissenting views in accordance with NASA Policy Directive 1000.0C, NASA supports full and open discussion of issues of any nature (e.g., programmatic, institutional), including alternative and divergent views. Diverse views are to be fostered and respected in an environment of integrity and trust with no suppression or retribution. (NPD 1000.0C, Section 3.5.5) Employees across the agency have raised concerns about recent actions to NASA leadership, yet we remain pressured to implement harmful measures. We choose to write to you directly because: (I) as Interim Administrator, you are the final step in the chain of Technical Authority, and (2) the issues we raise are agency-wide, rather than project-specific. As defined in NASA Procedural Requirement 7120 5F, Formal Dissent is "a substantive disagreement with a decision or action that an indiv… • We dissent to changes to NASA's Technical Authority capacities that are driven by anything other than safety and mission assurance. The culture of organizational silence promoted at NASA over the last six months already represents a dangerous tum away from the lessons learned following the Columbia disaster. Changes to the system of Technical Authority, as suggested would be made in the June 25th NASA Town Hall, should be made only in the interests of improving safety, not in anticipation of future budget cuts. • We dissent to the closing out of missions for which Congress has appropriated funding because it represents a permanent loss of capability to the United States both in space and on Eatlh. Once operational spacecraft are decommissioned, they cannot be turned back on. Additionally, cancelling missions in development threatens to end the next generation of crucial observations. • We dissent to implementing indiscriminate cuts to NASA science and aeronautics research because this will leave the American people without the unique public good that NASA provides. Basic research in space science, aeronautics, and the stewardship of the Earth are inherently governmental functions that cannot and will not be taken up by the private sector. Furthermore, NASA has a nearly threefold return on investment in economic activity, and supports national security by ensuring the United States maintains its lead in science and technology. • We dissent to NASA's non-strategic staffing reductions because they will jeopardize NASA's core mission. Thousands of NASA civil servant employees have already been terminated, resigned or retired early, taking with them highly specialized, irreplaceable knowledge crucial to carrying out NASA's mission. • We dissent to canceling NASA participation in international missions because in doing so, NASA is abandoning America's allies. To date, 55 nations have signed on to the Artemis Accords, and withdrawing support from missions with our long-s… We stand in solidarity with our colleagues at the NIH and EPA who have released similar statements concerning the administration's actions at their respective agencies. We dedicate this letter to Gus Grissom, Ed White, Roger Chaffee, Dick Scobee, Michael J. Smith, Ronald McNair, Ellison Onizuka, Judith Resnik, Gregory Jarvis, Christa McAuliffe, Rick Husband, Willie McCool, Michael Anderson, Kalpana Chawla, David Brown, Laurel Clark, and Ilan Ramon. Their legacies underpin every conversation about our shared commitment to safety and dissenting opinions at NASA.
July 21, 2025 at 3:09 PM
Reposted by Tereza Jarníková
rahmstorf.bsky.social
This important paper passed under the media radar. It analyses a key indicator of the stability of the Atlantic overturning #AMOC, in measured ocean data. It finds that most climate models get this wrong, and thus have an #AMOC that is too stable. 🌊
agupubs.onlinelibrary.wiley.com/doi/full/10....
June 29, 2025 at 2:34 PM
Reposted by Tereza Jarníková
zeptejsevedce.bsky.social
🌍Musíme se přizpůsobit změnám klimatu, nebo stačí drobné změny v našem chování, které mohou změnit svět? 🌳
Proč není třeba propadat panice, nám poví Tereza. 👇
June 6, 2025 at 6:31 AM
tjarnikova.bsky.social
Here's our new study with @ncas-uk.bsky.social and @ueaenv.bsky.social, looking at how the closing of the ozone hole affects the Southern Ocean’s capacity to take up atmospheric carbon. It's encouraging - the effects of ozone depletion are reversible, but only if greenhouse gas emissions stay low.
uniofeastanglia.bsky.social University of East Anglia (UEA) @uniofeastanglia.bsky.social · May 20
Did you know healing the ozone hole helps the Southern Ocean absorb carbon? 🌊

As the hole closes, its influence on the carbon sink of the Southern Ocean will diminish, while that of greenhouse gas (GHG) emissions will rise.

Read more:
bit.ly/43lFkbp

#ThisIsUEA #OzoneHole #Carbon #SouthernOcean
swirling rough dark sea water
May 21, 2025 at 2:38 PM
tjarnikova.bsky.social
Our new paper is out! We looked at how the closing of the ozone hole affects the Southern Ocean’s capacity to take up atmospheric carbon. It's encouraging - the effects of ozone depletion are reversible, but only if greenhouse gas emissions stay low. www.science.org/doi/10.1126/...
Decreasing importance of carbon-climate feedbacks in the Southern Ocean in a warming climate
Over the 21st century, ozone-driven circulation changes to the Southern Ocean carbon sink will be replaced by warming effects.
www.science.org
May 21, 2025 at 2:34 PM
Reposted by Tereza Jarníková
jetmar.bsky.social
napsal jsem o návratu státu. industriální politice, bidenomice, konci pax americana, číně, autech, eu a draghim, česku do top 10 a civilizaci na rozcestí. vydalo to na trochu delší text, ale je to tak vzrušující téma!

@page404.space

odkaz: pagenotfound.cz/clanek/upada...
May 20, 2025 at 11:42 AM
Reposted by Tereza Jarníková
zacklabe.com
This is horrible. I don't even know what to say. Some of our most key polar data.

"As a result, the level of services for affected products below will be reduced to Basic—meaning they will remain accessible but may not be actively maintained, updated, or fully supported."

nsidc.org/data/user-re...
Effective May 5, 2025, NOAA’s National Centers for Environmental Information (NCEI) will decommission its snow and ice data products from the Coasts, Oceans, and Geophysics Science Division (COGS). As a result, the level of services for affected products below will be reduced to Basic—meaning they will remain accessible but may not be actively maintained, updated, or fully supported. This includes Sea Ice Index, Snow Data Assimilation System (SNODAS) Data Products, Glacier Photograph Collection, U.S. National Ice Center Arctic Sea Ice Charts and Climatologies in Gridded Format Gridded Monthly Sea Ice Extent and Concentration, 1850 Onward World Glacier Inventory. If you rely on these products in your work, research, education, or planning, we invite you to share your story at nsidc@nsidc.org. Your input can help us demonstrate the importance of these data sets and advocate for future support.
May 6, 2025 at 8:08 PM
tjarnikova.bsky.social
Speaking of BLOGS, I write a quasi-monthly newsletter about, er, anything that I think about in a given month. Sometimes related to my work as an ocean modeller, usually not. This month I wrote about a dog I met in Edinburgh, among other things.

tjarnikova.github.io/cti/202503ch...
April 2, 2025 at 7:08 PM
Reposted by Tereza Jarníková
peterthorne.bsky.social
I have a very immediate appointment need for a junior PD position as a chapter scientist on the @ipcc.bsky.social Special Report on Climate Change and Cities. Initial appointment will be 6 months so I can appoint immediately but extendable to the two years of the report cycle. (1/2)
March 30, 2025 at 4:40 PM
tjarnikova.bsky.social
The whole Atomic Spectroscopy Group at National Institute of Standards and Technology (NIST) will be laid off in a few weeks. Petition (mostly for more info/solidarity) here: www.change.org/p/oppose-the...
Sign the Petition
Oppose the layoff of the NIST Atomic Spectroscopy Group
www.change.org
March 25, 2025 at 7:21 AM
tjarnikova.bsky.social
Moc gratuluji laureátům, a děkuji Czexpats
za zahrnutí mezi finalisty. Je fakt prima, kolik zajímavých a konstruktivních věcí se děje v české vědě napříč zeměmi i obory!
czexpats.bsky.social Czexpats in Science @czexpats.bsky.social · Mar 19
🏆Známe vítěze Ceny Czexpats 2025, kterou vyhlašujeme společně s DIANA Biotechnologies! 🔬

🏆 Letošními laureáty se stávají Monika Čechová, Jakub Drápal a Stanislav Fort! Gratulujeme! 👏 👏 👏

📅 Už brzy představíme jejich přednášky, které zazní při slavnostním předávání 16. 4. v Brně. Stay tuned! 💫
March 19, 2025 at 11:03 AM
Reposted by Tereza Jarníková
wdefaustenonek.bsky.social
When we are caught up in fear and anger, we miss what is happening in plain sight. Today it’s university faculty, immigrants and civil servants on the enemies list.
Tomorrow, it could be you."
March 18, 2025 at 2:05 AM
Reposted by Tereza Jarníková
oceanrics.bsky.social
Interested in the Southern Ocean C Sink and how to monitor it using autonomous platforms?

Great opportunity to contribute to @tricuso.bsky.social

emploi.cnrs.fr/Offres/CDD/U...
Portail Emploi CNRS - Offre d'emploi - Optimizing Southern Ocean Carbon Sink Observations Using Autonomous Floats - 2yr postdoc (M/F)
emploi.cnrs.fr
March 3, 2025 at 5:45 PM
tjarnikova.bsky.social
What is someone who has worked for the US government as an expert scientist for 25 years supposed to say when a ketamine-addled tech bro demands bullet points about their "work achievements"? "I spent 3 days calibrating an instrument that you wouldn't understand even if you were sober"?
February 24, 2025 at 11:17 AM
tjarnikova.bsky.social
Another friend fired from US federal science today. Their research question was extremely *woke*: "How do we prevent America's wheat crop from being eaten by this invasive insect?" World class American science is being gutted by pathetic, limited men who understand nothing but the profit imperative.
February 17, 2025 at 7:25 AM
tjarnikova.bsky.social
a volunteer initiative to back up U.S. Federal Climate Data

climatemirror.org
Climate Mirror | A Volunteer Effort to Mirror U.S. Federal Climate Data
A Volunteer Effort to Mirror U.S. Federal Climate Data
climatemirror.org
February 11, 2025 at 6:01 PM
Reposted by Tereza Jarníková
stephhenson.bsky.social
🌊 We’re hiring! Permanent position for a microbial oceanographer at NOC Southampton careers.noc.ac.uk/vacancy/rese...
Careers | National Oceanography Centre
careers.noc.ac.uk
February 6, 2025 at 2:36 PM
Reposted by Tereza Jarníková
jsweetli.bsky.social
I can independently confirm Wired's reporting here, as I was working with @marisakabas.bsky.social to track down this engineer. Marisa heard that Nikhil Rajpal was given full access to the NOAA system with a NOAA email from sources today.

Rajpal has DC roots. His X account is private: x.com/nikrdc
February 5, 2025 at 9:23 PM
tjarnikova.bsky.social
Our group has also had some success downloading data through the wayback machine.
February 6, 2025 at 11:39 AM