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dr roger cremades

@rogercre

Climate Change, Complexity Economics, Cities, Systems, Cascading Risks, Nexus, Data, Ecology. Complex systems insights for sustainable futures. Assoc Prof @ SEES SRI Leeds FRSA https://is.gd/1alYNP + https://is.gd/PfiCiI

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Latest posts by dr roger cremades @rogercre

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Grants Young Researchers of the Complex Systems Society

✨ Our grants are back! ✨

Young researcher in Complex Systems?

Apply for yrCSS grants to support:

💡 conferences / schools / workshops
🤝 research visits & collaborations
🌍 extra support for low-income countries

🗓️ Deadline: 20 March 2026

👉 yrcss.cssociety.org/grants/

10.03.2026 11:26 👍 12 🔁 12 💬 0 📌 0
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Higher orders need higher standards – Inverse Complexity Lab Research group on inverse problems in complex systems and network science.

A graph does not define a complex system; it constrains it.

Thus a graph model is not a “simplification” of a hypergraph; the opposite is true.

Graphs have been used to model higher-order interactions for decades.

Let’s stop this misleading narrative about hypergraphs!

skewed.de/lab/posts/hi...

09.03.2026 16:25 👍 5 🔁 1 💬 0 📌 0
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New paper by Dr @rogercre.bsky.social & colleagues expose hidden risks in global food system.
Shows how food‑trade globalisation makes some regions more vulnerable to production shocks, plus their tool estimating how much countries must boost reserves of any food category to withstand 20% of shocks👇

09.03.2026 11:35 👍 11 🔁 13 💬 1 📌 1
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gander 0.2.0 is now on CRAN! The package provides quick, granular AI assistance with #rstats code. This release substantially tightens up behavior in Quarto documents.

Read more: github.com/simonpcouch/...

09.03.2026 15:04 👍 9 🔁 4 💬 0 📌 0
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Murky days make for good fishing if you’re a predator like this double crested cormorant #doublecrestedcormorant #cormorant #murky #seabirdsofcoralcity #coralcitycamera

09.03.2026 15:15 👍 211 🔁 35 💬 0 📌 1

Well done @rafaelprietocuriel.bsky.social

09.03.2026 13:41 👍 0 🔁 0 💬 0 📌 0

Novel insights on product-specific #cascading risks & country resilience patterns explored with multiplex networks.

Thanks to @arifosch.bsky.social and @ymoreno.bsky.social for your leadership and interdisciplinary collaboration & @globalfoodleeds.bsky.social for policy impact suggestions

09.03.2026 11:48 👍 2 🔁 0 💬 0 📌 0
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While these signs are so positive and so helpful at this delicate moment, there is more to this story:

The Spanish gas industry was well overcompensated beforehand.

See from 2012 www.iese.edu/insight/arti... and 2021 (picture)
ieefa.org/wp-content/u...

09.03.2026 08:49 👍 1 🔁 0 💬 0 📌 0
WOMEN GROW, COOK & SUSTAIN OUR FOOD. IT'S TIME TO RECOGNIZE THEM
WOMEN GROW, COOK & SUSTAIN OUR FOOD. IT'S TIME TO RECOGNIZE THEM YouTube video by IPES-Food

🌾Without women, there is no food.

From farmers to food workers and community leaders, women sustain food systems across the world. Yet are denied resources and recognition.

On #InternationalWomensDay we celebrate the women who feed the world. 💜

#IWD2026 #WomenInAg #FoodSystems #Agroecology

08.03.2026 13:16 👍 14 🔁 7 💬 0 📌 1

Geopolitical Ecology, the urban scale.

08.03.2026 09:56 👍 2 🔁 1 💬 1 📌 0
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Susceptibilities of Democratic Electoral Systems The two most common families of electoral systems (ESs), defining the rules used to elect assemblies and legislative institutions, are proportional representation (PR) and plurality (Bormann and Golde...

What electoral system is less susceptible to different means of influence?

Some innovative quantitative hints here: ieeexplore.ieee.org/abstract/doc... (early version here arxiv.org/pdf/2308.10066)

Ping @hetanshah.bsky.social @robfordmancs.bsky.social

07.03.2026 18:04 👍 5 🔁 0 💬 0 📌 0
Rebecca Solnit Says Trump's Strongest Foil Has Been Here All Along | The Interview
Rebecca Solnit Says Trump's Strongest Foil Has Been Here All Along | The Interview YouTube video by The Interview

Stock taking interview by the great Rebecca Solnit, always inspired by and inspiring social-ecological change.

youtu.be/sOJ_uaffG5s?...
@rebeccasolnit.bsky.social

07.03.2026 17:31 👍 6 🔁 4 💬 0 📌 0
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Conceptualizing and measuring ecological spillover effects from protected areas Protected areas influence their surroundings in a variety of ways. These “spillover effects” can change an area’s conservation value and affect its social license. Advanced statistical tools for quan...

Conceptualizing and measuring ecological spillover effects from protected areas 🌎🌐🧪 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

05.03.2026 16:24 👍 13 🔁 8 💬 0 📌 0
monitoring at Backstone Beck

monitoring at Backstone Beck

1/3 Why it is so important to monitor Natural Flood Management interventions?

This is one of the key topics explored in the next free online Blue Green Infrastructure Training Session as part of West Yorkshire Flood Innovation Programme.
📅 Wednesday 18 March
⏲️ 1pm-3pm
Message us to book.

05.03.2026 17:19 👍 2 🔁 1 💬 1 📌 0

An attempt to express how I principally use LLMs.

Rotating the Space: On LLMs as a Medium for Thought
sbgeoaiphd.github.io/rotating_the...

16.01.2026 17:16 👍 70 🔁 16 💬 9 📌 17
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Kurdistan - Wikipedia

Time to read Wikipedia.

en.wikipedia.org/wiki/Kurdistan

en.wikipedia.org/wiki/Balochi...

05.03.2026 16:59 👍 1 🔁 0 💬 0 📌 0
A screenshot of an RStudio window. On the left-hand side is a new pain called Posit Assistant. The Posit Assistant had recently run code making a lat-lon plot of Washington state, colored by whether the point had been marked as forested or not.

A screenshot of an RStudio window. On the left-hand side is a new pain called Posit Assistant. The Posit Assistant had recently run code making a lat-lon plot of Washington state, colored by whether the point had been marked as forested or not.

Today we're releasing AI for RStudio. It's really, really good—I'd encourage you to point it at the messiest data sources you have and see what it can do.

www.simonpcouch.com/blog/2026-03...

05.03.2026 15:48 👍 115 🔁 32 💬 7 📌 5
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ESD Ideas: Reliable Adaptation Policies to Sea-Level Rise Require Incorporating Complexity in Economic Models Abstract. With trillions of USD in assets facing climate-induced sea-level rise, oversimplified economic models might misinform responses. By capturing non-linearities in interconnected socio-economic...

Our pre-print "Reliable Adaptation Policies to Sea-Level Rise Require Incorporating #Complexity in Economic Models" is ready for you to review in #openaccess @egu.eu's Earth System Dynamics.

egusphere.copernicus.org/preprints/20...

05.03.2026 14:17 👍 2 🔁 1 💬 0 📌 0
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Most compact quadruple star system yet fits within an area the size of Jupiter’s orbit Illustration of the architecture and true physical dimensions of the compact quadruple star system, TIC 1203...

#Space

Origin | Interest | Match

05.03.2026 04:48 👍 0 🔁 1 💬 0 📌 0

Fantastic points. It really makes you think about all those #systemicrisks hiding just out of sight

05.03.2026 13:46 👍 0 🔁 0 💬 0 📌 0
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🌿 Nature knows how to fix itself 🌿
Reintroducing beavers in Europe has restored wetlands, helped wildlife, and improved water quality. 🦫💧(1/2)

05.03.2026 13:33 👍 1 🔁 1 💬 0 📌 0

They searched through the last cloud but found no drops were forming, and had to look for water underground, where the rest of their lives would be spent, escaping the surface of a cloudless world.

#WorldBookDay #Microtale

05.03.2026 10:49 👍 1 🔁 0 💬 0 📌 0
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36 years of shifting trade #networks have rewired the #foodsystem: a "perfect storm" of vulnerability for food-insecure regions, who are more exposed to #cascades from distant supply shocks than ever before.

@arifosch.bsky.social @ymoreno.bsky.social @envleeds.bsky.social

arxiv.org/pdf/2603.01740

03.03.2026 08:21 👍 11 🔁 8 💬 1 📌 1
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Join us at the #EMS26, the European Meteorological Society meeting this September in Utrecht for our session on high-impact extremes!

📍 UP3.7. High-impact climate extremes: physical understanding, storylines, impacts and projections

lnkd.in/efWVVCYX

Abstract submission deadline is 27th of March.

05.03.2026 08:20 👍 3 🔁 3 💬 0 📌 0
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Global economy must stop pandering to ‘frivolous desires of ultra-rich’, says UN expert Olivier De Schutter says new economic agenda needed to tackle crises of rising inequality and ecological collapse

Another insightful observation from @deschuttero.bsky.social from the @theguardian.com

You know there is a problem when the UN Special Rapporteur on *Extreme Poverty* thinks Extreme Wealth is the real issue.

www.theguardian.com/environment/...

04.03.2026 09:45 👍 13 🔁 6 💬 0 📌 0

Hi @johnmarsham.bsky.social, what would be the best way to integrate climate data in this model?

03.03.2026 08:38 👍 2 🔁 0 💬 1 📌 0
Population synthesis with geographic coordinates It is increasingly important to generate synthetic populations with explicit coordinates rather than coarse geographic areas, yet no established methods exist to achieve this. One reason is that latit...

New preprint: Population synthesis with geographic coordinates 🌍

We introduce a method to generate synthetic populations with explicit lat/long coordinates.
Using Normalizing Flows + VAEs, we capture spatial + non-spatial correlations between samples and features.

📄: doi.org/10.48550/arX...

15.10.2025 08:44 👍 3 🔁 1 💬 1 📌 0
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36 years of shifting trade #networks have rewired the #foodsystem: a "perfect storm" of vulnerability for food-insecure regions, who are more exposed to #cascades from distant supply shocks than ever before.

@arifosch.bsky.social @ymoreno.bsky.social @envleeds.bsky.social

arxiv.org/pdf/2603.01740

03.03.2026 08:21 👍 11 🔁 8 💬 1 📌 1

This was a fun generalized modelling project with @janamassing.bsky.social @akfbio.bsky.social and @jdyeakel.bsky.social. Bacteria really need generalized models to make the maths fit properly.

02.03.2026 11:32 👍 4 🔁 4 💬 0 📌 0

Some reviews are born outdated...

As we show (arxiv.org/abs/2602.16937 ):

1. Graphs are not limited to expressing “pairwise” interactions, and generalize hypergraph models.

2. The abrupt transitions described in the review occur in tree-like graphs, and do not require hypergraphs at all.

02.03.2026 12:37 👍 6 🔁 2 💬 0 📌 0