iiinova — where your digital self keeps evolving

Reposted by Fabien Cottier

Mark Copelovitch @mcopelov.bsky.social · 30/09/2025

I know we're desensitized, but it's important to note, again, that today's events would have led to the immediate impeachment & removal of any president from at least Truman to at least Obama. We're hundreds of miles on the interstate past Richard Nixon's high school prank-level crimes compared to 👇

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Fabien Cottier @fabiencottier.bsky.social · 24/09/2025

That said, I am glad for the chance to remain involved with research at Columbia through a President's Global Innovation Fund (PGIF) for a project on displaced livelihood in India. I am also enthusiatic about a new project funded with the Lincoln Institute of Land Policy, with @he-yin.bsky.social.

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Fabien Cottier @fabiencottier.bsky.social · 24/09/2025

It is of course bittersweet to be leaving Columbia at a time when scientific research in the US is facing unprecedented attacks.

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Fabien Cottier @fabiencottier.bsky.social · 24/09/2025

I throughly enjoyed the past 6+ years at Columbia University, and in particular at CIESIN, the Lamont-Doherty Earth Observatory and the Saltzman Institute of War and Peace Studies. I will be missing my many colleagues at Columbia. I am especially thankful to Alex de Sherbinin and Richard Seager.

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Fabien Cottier @fabiencottier.bsky.social · 24/09/2025

I am excited to share that I am starting a new position as a Lecturer in the department of political science and international relations (www.unige.ch/sciences-soc...) at the University of Geneva this Fall semester.

unige.ch

Science politique et relations internationales - Département de science politique et relations internationales - UNIGE

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Michael Clemens @mclem.org · 20/09/2025

The White House has chosen a truly extremist step that will kneecap American research and innovation. It is an additional bomb dropped on the US higher education system, illegally and recklessly, that will end up harming every Conservative and Liberal American.

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Fabien Cottier @fabiencottier.bsky.social · 16/06/2025

We are excited to hear from Sarah Rosengaertner, Natalia Banulescu-Bogdan, Miyuki Hino, Jeroen Aerts and Michael Oppenheimer about the opportunities and pitfalls of quantitative models, as well as the promises of model intercomparison and integration to generate nuanced evidence-based policies.

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Fabien Cottier @fabiencottier.bsky.social · 16/06/2025

@lisathalheimer.bsky.social and I are looking forward to a great panel discussion on Wednesday at the #MR2025 conference on the use of quantitative models and data to inform policy on climate-induced migration (8.30am, Geffen Hall room #320).

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Kelsea Best, PhD @kelseabest.bsky.social · 15/03/2025

New book "Migration and Displacement in a Changing Climate" with the brilliant @rmcleman.bsky.social and Kayly Ober out in April and available for preorder! @cambridgeup.bsky.social

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Columbia Climate School @climate.columbia.edu · 19/03/2025

How can policymakers help people who can't flee climate risks? New study by CIESIN's @fabiencottier.bsky.social & Alex de Sherbinin, @ncdp.bsky.social's @wxpizza.bsky.social, @lamontearth.bsky.social's @monahemmati.bsky.social & Radley Horton, & colleagues explores policy and preparedness solutions.

news.climate.columbia.edu

How Can We Help People Who Cannot Flee High Climate-Risk Zones?

Much research focuses on people fleeing climate risks and natural hazards. What about those who can't move?

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Yan Matusevich @ymatusik.bsky.social · 07/03/2025

Just got an email from the Fulbright Association. As of right now, funding has been cut off to 12,500 US citizens currently abroad and and more than 7,400 foreigner scholars and students in the United States

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Ian Dunt @iandunt.bsky.social · 02/03/2025

"It's quarter to the midnight. As there are doubts over the support of the Americans towards Europe over time, we need to mobilise hundreds of billions of euros. It is Europe's strategic wake-up moment." www.politico.eu/article/euro...

politico.eu

Macron: EU needs ‘hundreds of billions’ in defense spending as US pivots away

French president’s urging comes ahead of Thursday’s special EU summit focused on defense, as Trump signals a friendlier approach to Moscow and disengagement from Europe.

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John Skiles Skinner @skiles.blue · 01/03/2025

I got laid off today, with the rest of 18F. 18F was an elite federal software shop. We made gov't websites work better, more efficiently for the American people. We saved taxpayers from getting screwed over by contractors. And were fired for it. We made this website to tell our story: 18f.org

18f.org

We're not done yet | 18F

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Darby Saxbe @darbysaxbe.bsky.social · 04/02/2025

🚨BREAKING. From a program officer at the National Science Foundation, a list of keywords that can cause a grant to be pulled. I will be sharing screenshots of these keywords along with a decision tree. Please share widely. This is a crisis for academic freedom & science.

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Reposted by Fabien Cottier

Adam Keiper @adamkeiper.com · 02/02/2025

Incredibly moving Justin Trudeau remarks: "We have fought and died alongside you....During your darkest hours...we were always there. Standing with you, grieving with you, the American people....Canadians are a little perplexed as to why our closest friends and neighbors are choosing to target us."

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

This work was made possible by the generous support of Africa Climate Mobility Initiative (ACMI) and the NASA Socioeconomic Data and Applications Center (SEDAC). [7/7]

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

I am deeply thankful to Alex de Sherbinin, Jacob Schewe, Kamal Amakrane, Bryan Jones, Hélène Benveniste, Samir K.C., Sarah Rosengaertner, Richard Seager, Nina von Uexkull, Greg Yetman, as well as Robert Beyer and Michal Burzynski for their insightful comments and/or data sharing. [6/n]

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

And yet, close inspection of the calibration model suggests that its predictive ability should not be overstated. Examining the predictive ability of the model within individual migration corridors indicate that the model still struggles to capture temporal dynamics. [5/n]

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

An out-of-sample assessment of the posterior predictive ability of the model using leave-one-out cross-validated expected log pointwise density indicates that hierarchical models out-perform simpler models in replicating observed migration flows on the continent over the period 1990-2010. [4/n]

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

To calibrate the projection model underlying these projections, I use Bayesian hierarchical models in a gravity framework. Drawing on SSP and RCP scenarios, I then project future migration under different combinations of climate change and socio-economic scenarios. [3/n]

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

The results indicate that over the period 2010–2050 up to 17 million people are projected to migrate internationally on the African continent (from one African country to another one), though only at best 5% of these as a result of climate change.

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Fabien Cottier @fabiencottier.bsky.social · 08/01/2025

Great to see my new paper out with Frontiers in Climate (www.frontiersin.org/journals/cli...). In this paper, I present the methodology behind projections of future international migration within Africa, that were released in the recent African Shifts report (africa.climatemobility.org). [1/n]

frontiersin.org

Frontiers | Projecting future migration with Bayesian hierarchical gravity models of migration: an application to Africa

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Columbia Climate School @climate.columbia.edu · 12/12/2024

Here at @agu.org #AGU24, we stopped by to talk with CIESIN scientist Fabien Cottier about his research on factors behind the recent rise in migration from Central America to the US and from West Africa to Europe. Watch the 🎥 here: www.instagram.com/p/DDfftg-qnXM/

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Fabien Cottier @fabiencottier.bsky.social · 09/12/2024

Yes, Nic Choquette-Levy will be presenting the results of some of our research that looks at the implication of climate change (among others) for internal migration in Senegal; see here agu.confex.com/agu/agu24/me...

agu.confex.com

Investing with Foresight: Livelihood and Migration Consequences of Climate Hazards for Rural Senegalese Populations

Like many countries in sub-Saharan Africa, Senegal faces concurrent challenges ...

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Fabien Cottier @fabiencottier.bsky.social · 09/12/2024

Looking forward to our oral session tomorrow at #AGU24 on 'Climate Change in Fragile Contexts: Responses, Adaptation, and Security'. We are delighted to have as invited speakers Thomas Parris, Kathleen Cunningham and Jamon van den Hoek (Monday, Dec 9, 4pm). agu.confex.com/agu/agu24/me...

agu.confex.com

Climate Change in Fragile Contexts: Responses, Adaptation, and Security II Oral

Climate-induced hazards, exposure, and vulnerability are not equally or equitably distributed globally. In many countries, politically and/or socially marginalized people, as well as those who find th...

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Eugene Finkel @efinkel.bsky.social · 07/12/2024

Remember kids, you can't do anything to and about Putin because he always cares more than we do, his resolve is infinite, and his commitment to friends, clients and fellow autocrats is boundless. Neither he nor Russia can ever lose or just get up and leave. Simply impossible, doesn't happen.

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Fabien Cottier @fabiencottier.bsky.social · 21/11/2024

Nice to see this social network finally gaining traction

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Fabien Cottier @fabiencottier.bsky.social · 10/07/2024

I am very glad to announce our 2024 AGU Fall session on "Responses and Adaptation to Climate Change in Fragile Contexts" that we are convening with Elisabeth Gilmore and David Wrathall. More information about the session here: agu.confex.com/agu/agu24/me...

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Fabien Cottier @fabiencottier.bsky.social · 24/06/2024

CIESIN at the Columbia Climate School is hiring a deputy director. Apply if you are passionate about: #datascience, #decisionsupport, #environmentaljustice, #population dynamics, #vulnerability, #naturaldisasters, #remotesensing, and more. For more info: academic.careers.columbia.edu#!/140812

academic.careers.columbia.edu

Academic Search and Recruiting

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Fabien Cottier @fabiencottier.bsky.social · 30/10/2023

Glad to welcome our new Associate Director for Science Applications, Dana Thomson, at CIESIN! ciesin.columbia.edu

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