Existential Crunch

Auroras, space weather and the threat to critical infrastructure

How vulnerable are we to the next Carrington Event?

Oct 29 • 

Florian U. Jehn

9

1

Inequality all the way down

Structural demographic theory and the United States

Oct 1 • 

Florian U. Jehn

22

4

3

September 2025

Manipulating the global thermostat

Climate change, nuclear winter, and stratospheric aerosol injections

Sep 3 • 

Florian U. Jehn

5

2

1

August 2025

The people's history of collapse

How dominance hierarchies doom societies

Aug 6 • 

Florian U. Jehn

13

13

2

July 2025

The state of global catastrophic risk research

A bibliometric review

Jul 22 • 

Florian U. Jehn

6

1

July 2025 Updates

Beauty and citations

Jul 16 • 

Florian U. Jehn

4

1

June 2025

What could go wrong?

A list of lists of large catastrophes

Jun 18 • 

Florian U. Jehn

7

1

7

May 2025

Reform or ruin

How some societies manage to avoid crisis

May 21 • 

Florian U. Jehn

9

3

April 2025

How to write a living literature review

Finding papers, coming up with ideas, writing and publishing

Apr 23 • 

Florian U. Jehn

8

2

1

April 2025 Updates

Understanding trade and democracies better

Apr 16 • 

Florian U. Jehn

3

4

2

March 2025

Revolution and democracy

Hannah Arendt's vision for true freedom

Mar 19 • 

Florian U. Jehn

10

3

February 2025

Systemic risk and the polycrisis

A primer

Feb 19 • 

Florian U. Jehn

11

4

4