Mostly mentoring a group of postdocs at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://sustainablesolutions.stanford.edu/people/ken-caldeira
Posts imperfectly represent the views of my former self and not my employer. ..
more
Mostly mentoring a group of postdocs at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://sustainablesolutions.stanford.edu/people/ken-caldeira
Posts imperfectly represent the views of my former self and not my employer.
Kenneth Caldeira is an American atmospheric scientist. His areas of research include ocean acidification, climate effects of trees, intentional climate modification, interactions in the global carbon cycle/climate system, and sustainable energy. .. more
I post about climate science, energy system transition, and related issues.
I try to restrain myself to information and questions, and try to avoid unseemly opining in public.
1. Republicans in power forever;
2. Pardons, collective amnesia and Democratic party leaders saying:
"Let's move on in the name of unity. We need to look forward, not backwards."
Cryptocurrency values are highly sensitive to "regulatory arbitrage" and often depend on political favoritism.
clsbluesky.law.columbia.edu/2025/12/05/c...
What is the rationale for focusing on multi-model means instead of medians?
If I had a collection of thermometers and thought some of them might be broken, I would trust the median rather than an average that included broken thermometers.
www.nytimes.com/2025/12/07/t...
Reposted by Ken Caldeira
Reposted by Ken Caldeira, Alan Richardson
- Bella Fromm, Berlin, 3/20/1938
Reposted by Ken Caldeira, Paul G. Lewis, Ann Bartow , and 2 more Ken Caldeira, Paul G. Lewis, Ann Bartow, Mauro Gatti, David Darmofal
This is why they so dislike the comedians.
The comedians might say something as a joke, but then the Republicans want to implement it as policy.
www.npr.org/2025/12/04/n...
Each beat represents the same amount of zoom.
A new experiment that seems to have worked pretty well.
Thanks Yann Le Bihan for letting me do this!
youtu.be/SvyEYnIKAbA?...
Reposted by Ken Caldeira
Say that to your tenure committee.
In many cases, you letter writers will see some sort of statement from you. If you have that opportunity, say that in your statement.
Again, the main thing is the priors of the tenure committee. Do they want to grant you tenure?
The most important thing is to have a tenure committee composed of people who want to grant you tenure, so they send letter requests out to people who are likely to speak highly of you.
It is a bit of a crapshoot because some letter writers use superlatives freely, while for others, their highest compliment is saying someone is 'good'.
Perhaps the only meaningful thing is when the tenure committee asks letter writers to evaluate someone relative to five other people.
Since this is most likely to be the primary source of income for low-income people, it increases risk for low-income people.
Defined benefit plans distribute that risk throughout the society.
"Trump Looking into Options for Eliminating Social Security Retirement Benefits"
www.cnn.com/2025/12/03/e...
Great book !!
Great exposition of how simple structures can produce complicated behavior, and that those structures are not easily determinable from the behavior.
Some should sell a kit to go along with this book.
www.amazon.com/Vehicles-Exp...
The Founding Fathers never conceived that we would have a criminal President protected by colluding Senators.
Reposted by Ken Caldeira
Reposted by Gordon Pennycook, Brendan Nyhan, Ken Caldeira
Reposted by Archon Fung, Richard S.J. Tol, Nicholas A. Christakis , and 22 more Archon Fung, Richard S.J. Tol, Nicholas A. Christakis, David Lazer, Will Jennings, Gordon Pennycook, Brendan Nyhan, Ken Caldeira, Stacie B. Dusetzina, Alistair Munro, Caroline Krafft, Jacob Montgomery, Benjamin Braun, Adam Bonica, Gerry Canavan, Daniel S. Goldberg, Karen Benjamin Guzzo, Paul Goldsmith-Pinkham, Brian Keegan, David C. Kimball, Andy Reisinger, Sam Kamin, Pepper D. Culpepper, Achim Kemmerling, Nathan P. Kalmoe
www.nber.org/papers/w34524
via @florianederer.bsky.social
If Hegseth ordered a war crime and lied about it, shouldn’t Ds try for impeachment? Put Rs on the spot. They might get a few defections.
www.axios.com/2025/12/01/j...
Ukraine is 603,628 km2 (233,062 sq mi).
The contiguous United States 8,080,000 km2 (3,120,000 sq mi).
1. Republicans in power forever;
2. Pardons, collective amnesia and Democratic party leaders saying:
"Let's move on in the name of unity. We need to look forward, not backwards."
"Many Fighting Dictatorship in the United States Fear They Are Losing the Information War"
"Many Fighting Corruption in the United States Fear They Are Losing the Information War"
etc