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Halley E. Froehlich

@dochfroehlich.bsky.social
7.4K followers 2.4K following 545 posts

Mom. University of Helsinki, Finland Full Professor studying aquaculture, fisheries, and climate change.

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Reposted by Halley E. Froehlich
Katharine Hayhoe @katharinehayhoe.com · 20/09/2026
Elite athletes, musicians, actors & more often use cultural importance as an excuse for why they're exempt from cutting their emissions. In this new analysis led by @manuelsuter.bsky.social, we argue the opposite: visibility and influence should raise the bar, not lower it! Read more:
nature.com
The climate responsibility of cultural influencers - npj Climate Action
In socially influential fields such as elite sport, music, and film, cultural relevance is often invoked as a special moral status that exempts them from genuine emissions reduction. We argue that vis...
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Reposted by Halley E. Froehlich
Bernard Kim @bernardkim.bsky.social · 15/09/2026
Princeton EEB is running a very broad faculty search at the Assistant Professor level. Please consider applying to join us! This is a wonderful, collaborative, cohesive department with diverse interests and amazing colleagues. apply.interfolio.com/193474
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Halley E. Froehlich @dochfroehlich.bsky.social · 18/09/2026
Thrilled to share our new Sea Grant funded publication! 🚨 We define and test (via pilot and modeling) if harvesting biofouling seaweeds can be profitable for #aquaculture. In short: YES, but it depends on the farm & spp that grow on the infrastructure www.frontiersin.org/journals/aqu...
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Halley E. Froehlich @dochfroehlich.bsky.social · 19/08/2026
Paper accepted!! 💅 This one was really fun to work on and new for me. I took on some basic bioecon modeling and snuck in some core ecology theory 😬. Excited to share it soon!
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Reposted by Halley E. Froehlich
Albert Ruhí @albertruhi.bsky.social · 08/08/2026
We're hiring an ecologist at UC Berkeley! The Dept. of Integrative Biology is hiring a tenure-track Assistant Professor in Ecology. Plants/algae, invertebrates, microbes, or marine systems a priority. Come join us!! Apply by Oct 5, 2026. aprecruit.berkeley.edu/JPF05489 PS: Please share!
aprecruit.berkeley.edu
Assistant Professor –Ecology- Integrative Biology
University of California, Berkeley is hiring. Apply now!
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Halley E. Froehlich @dochfroehlich.bsky.social · 05/08/2026
Kuuma
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Halley E. Froehlich @dochfroehlich.bsky.social · 05/08/2026
Let’s #science, shall we? @helsinki.fi
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Halley E. Froehlich @dochfroehlich.bsky.social · 24/07/2026
The partner and kiddo went while I was working :)
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Halley E. Froehlich @dochfroehlich.bsky.social · 24/07/2026
Enjoying lunch in #Helsinki with the family 🇫🇮😊
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Halley E. Froehlich @dochfroehlich.bsky.social · 24/07/2026
Watching the attempts of a 3rd Red Scare in the US and knowing my history of how it all ended for McCarthy is quite something…
static.klipy.com
Buffy The Vampire Slayer Eating Popcorn
ALT: Buffy The Vampire Slayer Eating Popcorn
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Halley E. Froehlich @dochfroehlich.bsky.social · 23/07/2026
Turns out physiology has limits. Who knew? 🤷‍♀️😮‍💨
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Halley E. Froehlich @dochfroehlich.bsky.social · 23/07/2026
This post is the best of the internet.
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Halley E. Froehlich @dochfroehlich.bsky.social · 23/07/2026
All of the Nordics are on vacation Every July Finns go to their Summer cottages in the North to sauna 🥵,swim🏊‍♀️, & forage🍄‍🟫🫐.
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Reposted by Halley E. Froehlich
Richard Waite @waiterich.bsky.social · 19/07/2026
Hunger is a policy choice. Or, as we have seen during 2025-26, policy choice after policy choice after policy choice.
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Halley E. Froehlich @dochfroehlich.bsky.social · 23/06/2026
As a #seafood expert, I can confirm this is stupid. Thank you for your attention. 😒 www.independent.co.uk/bulletin/new...
independent.co.uk
Trump official suggests Greenland plan could revive Red Lobster shrimp promotion
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
I don't know, I kind of like the revenge of the algae.
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
We dedicate this paper to Dr. Fred Conte, California state Aquaculture Specialist Emeriti of UC Davis Cooperative Extension, who sadly passed in 2021. We thank him posthumously for his deep insight and guidance surrounding oyster #aquaculture in the state (10/10). And thank you Sea Grant!!
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
In all, we found when dramatic, sudden declines occur in wild capture we consistently saw some level of evidence of aquaculture emergence or growth within a 5 year window of time. With variability of food systems projected to increase with time this has important implications for #aquaculture (9/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Last, but certainly not least, we collected #oyster data going back to 1888 & found more evidence for blue transitions. More specifically, that a 'full blue transition' occurred (no fishing, only farming) sometime in the mid-1930s. But it's hard to say exactly when bc the data were misreported(8/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
That said, incorporating policy effects into a quantitative model is challenging and the number of policies did not improve our predictive model of aquaculture production. What did was CA population, US GDP, and wild catch CV (as we hypothesized!) (7/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Interestingly, growth was 17x faster in the 1950s compared to the increases after 1980, which we hypothesize maybe due to the proliferation (at the same time as the major fishery shock)of regulations in the state (and nation); a ~2:1 restrictive to enabling policy landscape that emerged (6/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Overlapping with that 1984 wild shock time period we found a 'breakpoint' in aquaculture growth (dominated by mollusks not fish), with a complete change in average directionality (growth specifically). Importantly this held with a longer, though more uncertain time series (5/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Aggregating (A LOT OF) different time series of wild and farmed production, we found several shocks (sudden & sig. decline), but the biggest was in 1984 when N. anchovy and yellowfin both collapsed (the red line) (4/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Why/how would shocks of wild capture influence #aquaculture you ask? Humans are largely reactive, & there is plenty of qualitative examples of things like hatchery interventions, retraining programs, & policies that promote the emergence & growth of aquaculture when wild stocks rapidly decline(3/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
1st we expanded the basic theory based on parallel systems and shock dynamics, hypothesizing that major shocks to wild fisheries (volume & value) may be more likely to influence aquaculture and spur blue transitions, especially short term. Importantly, it doesn't have to be the same species (2/10)
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Halley E. Froehlich @dochfroehlich.bsky.social · 16/06/2026
Excited to share our new OA paper exploring the scales and quantitative drivers of 'blue transitions' (aka fishing🎣 ➡️ aquatic farming🌊🚜) using California as a case study #aquaculture (1/10) iopscience.iop.org/article/10.1...
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Halley E. Froehlich @dochfroehlich.bsky.social · 14/06/2026
Jealous
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Reposted by Halley E. Froehlich
David Ho @davidho.bsky.social · 10/06/2026
New metaphor just dropped
nytimes.com
Huge American Flag Flies Into Power Lines, Knocking Out Power for Thousands
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Halley E. Froehlich @dochfroehlich.bsky.social · 08/06/2026
LA. You got this.
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Reposted by Halley E. Froehlich
David Ho @davidho.bsky.social · 06/06/2026
To see how important US science is, consider measurements of changes in ocean heat content. US data are ~53% of the total. Over half! But removing the US data is worse than randomly removing 80% of the total data, because unlike other countries, the US makes measurements everywhere. 🧪🌊
nature.com
Critical dependence of global ocean heat monitoring on the ocean observing system - Nature Climate Change
International collaboration has facilitated a global ocean observing system, providing data to measure ocean heat content at a resolution that enables the tracking of climate change. This study looks ...
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Reposted by Halley E. Froehlich
Robert Kelchen @robertkelchen.com · 05/06/2026
This is a really cool piece on how Alan Alda has funded an initiative to help researchers better communicate their findings to the public through learning improv skills.
wsj.com
Alan Alda’s Solution to Eroding Trust in Science: More Improv
The “M*A*S*H” star’s program to help researchers overcome their communication challenges now draws thousands. We sat in on a class.
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Reposted by Halley E. Froehlich
Katharine Hayhoe @katharinehayhoe.com · 30/05/2026
I’m a climate scientist. Let me fix this headline. “Nearly a century ago, scientists showed that burning fossil fuels warms the planet. Today, we know human emissions account for over 100% of the warming. Yet dark money and disinformation still work to keep Americans addicted to fossil fuels.”
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Reposted by Halley E. Froehlich
Jess Calarco @jessicacalarco.com · 29/05/2026
This is bad. Bad for researchers. Bad for science. Bad for universities. Bad for professional associations. For example: 1. Every award would be vetted by political appointees, who could overrule peer reviewers and deny the award if it doesn't advance the president's priorities. 1/🧵
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Reposted by Halley E. Froehlich
David Ho @davidho.bsky.social · 28/05/2026
How to further weaken US science and hinder scientific progress…
science.org
Lawmakers propose banning all U.S.-Chinese research collaborations
Critics say bill would weaken U.S. science by cutting flows of ideas and talent
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Halley E. Froehlich @dochfroehlich.bsky.social · 28/05/2026
😞
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Reposted by Halley E. Froehlich
Trevor A. Branch @trevorabranch.bsky.social · 28/05/2026
Complete madness. NSF once again stops giving out grants to the best universities in the US. www.nature.com/articles/d41...
nature.com
Exclusive: NSF puts new research grants to top universities on hold
US science funder once again restricts awards to Harvard University and other research institutions.
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Reposted by Halley E. Froehlich
Colin Carlson @colincarlson.bsky.social · 27/05/2026
So here's what happened to my lab (and @viralemergence.org). www.nature.com/articles/d41...
nature.com
Exclusive: NSF puts new research grants to top universities on hold
US science funder once again restricts awards to Harvard University and other research institutions.
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Halley E. Froehlich @dochfroehlich.bsky.social · 27/05/2026
For the people in the back 📢
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Halley E. Froehlich @dochfroehlich.bsky.social · 27/05/2026
The parallel to “Idiocracy” is uncanny…
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Reposted by Halley E. Froehlich
Prof Ian Hall @ianhall.bsky.social · 23/05/2026
🌊 The ocean absorbs >90% of Earth’s excess heat, and our ability to track it depends on a fragile global network of floats, ships and sensors. New research warns that cuts to the Global Ocean Observing System could make climate signals indistinguishable from noise. www.nature.com/articles/s41...
nature.com
Critical dependence of global ocean heat monitoring on the ocean observing system - Nature Climate Change
International collaboration has facilitated a global ocean observing system, providing data to measure ocean heat content at a resolution that enables the tracking of climate change. This study looks ...
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Halley E. Froehlich @dochfroehlich.bsky.social · 22/05/2026
Character building (or something)!
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Halley E. Froehlich @dochfroehlich.bsky.social · 22/05/2026
Ooft. Two rejections on my first big EU grants. At least some things stay the same no matter the country 🥴
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Garry Peterson @resiliencesci.bsky.social · 21/05/2026
“The UN has voted 141-8 to adopt a resolution backing a world court opinion that countries have a legal obligation to address climate change, with the US – which is the world’s biggest historical emitter – among the small group opposing it” www.theguardian.com/environment/...
theguardian.com
UN backs historic climate crisis ruling, despite US attempts to stop resolution
The US, Russia, Iran and Saudi Arabia – some of the highest oil-producing nations and major greenhouse gas emitters – opposed the measure
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Halley E. Froehlich @dochfroehlich.bsky.social · 14/05/2026
I’m personally and deeply offended by this targeted post about me 😏
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Reposted by Halley E. Froehlich
Prof Helen Bostock @oceanhelen.bsky.social · 10/05/2026
Finally we are recruiting a physical geographer in the school of the environment at the university of Queensland, Australia. Looking for researchers who are passionate about teaching. Keen for people working in hydrology, geomorphology, climate modelling. uq.wd3.myworkdayjobs.com/en-GB/uqcare...
uq.wd3.myworkdayjobs.com
Lecturer or Senior Lecturer in Physical Geography
Faculty of Science | School of the Environment Full-time permanent position Base salary will be in the range $117,120.53 – $138,769.70 plus 17% super (Academic Level B) or $143,099.52 – $164,748.70 pl...
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Halley E. Froehlich @dochfroehlich.bsky.social · 10/05/2026
Favorite post. Ever.
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Reposted by Halley E. Froehlich
David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · 10/05/2026
Happy Mother’s Day! Sharks get a whole week.
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Halley E. Froehlich @dochfroehlich.bsky.social · 08/05/2026
Yes! 🙌
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Halley E. Froehlich @dochfroehlich.bsky.social · 08/05/2026
My move to Finland has made headlines in the Nordics. My decision was not easy, and the transition is very hard (no shock there). But long term, I’m looking for joy in science again and societal support for my daughter 🇫🇮: www.hbl.fi/finland/amer...
hbl.fi
Amerikansk professor flydde till Finland
Så svårt blev det efter Trump • ”Omöjligt att göra arbetet”.
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David Ho @davidho.bsky.social · 07/05/2026
Just talked to a federal science agency program officer about why no money is going out the door despite congressional appropriations. To award funding, they have to publish a Notice of Funding Opportunity (NOFO). Those aren’t being approved. And funding over $100k has to be approved. They aren’t.🤬
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