Ken Caldeira
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Ken Caldeira
@kencaldeira.com
20K followers 4.1K following 2.3K posts

Mostly mentoring a group of postdocs.
Conceptual Investigations Unit, housed at Stanford.
Senior Scientist at Gates Ventures.
climate / energy / etc
https://ciunit.org

Posts imperfectly represent the views of my former self and not my employer. .. more

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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

Environmental science 45%
Geography 15%
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kencaldeira.com
Ken Caldeira @kencaldeira.com · Nov 18
Folks, I am really appreciative of people who have followed me and added me to their starter packs.

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.

kencaldeira.com
Ken Caldeira @kencaldeira.com · 8h
The underlying paper finds that unfamiliar languages sound equally pleasant to within a couple of percentage points.

www.pnas.org/doi/10.1073/...
However, once we have accounted for familiarity and preferences for specific voice types, the scores of all unfamiliar languages varied within just a few percentage points. The 228 world languages that we tested, with all their phonetic and prosodic diversity, thus sounded comparably attractive to the average listener in our sample as long as they were not familiar.

kencaldeira.com
Ken Caldeira @kencaldeira.com · 8h
The "free speech absolutists" are at it again.

www.theguardian.com/technology/2...
Meta bans ads for Virginia Woolf play in Spain because they relate to feminism
Theatre told that Facebook and Instagram filter out ads mentioning ‘social topics’ such as civil rights or feminism
www.theguardian.com

kencaldeira.com
Ken Caldeira @kencaldeira.com · 12h
"Their tongue and their eyes are not to be pulled out; their ears and their feet are not to be cut off; their houses with their wives and their children are not to be destroyed."

www.livescience.com/archaeology/...

kencaldeira.com
Ken Caldeira @kencaldeira.com · 12h
bsky.app/profile/kenc...
kencaldeira.com Ken Caldeira @kencaldeira.com · 11d
Kings in ancient Mesopotamia made statements to the effect that a central role of government is to protect the less powerful against abuse by the more powerful.

We have lost that understanding of government.

Urukagina (Uruinimgina), 2350 BCE.
Ur-Nammu, 2100 BCE.
Hammarubi, 1750 BCE.
In the prologue, Hammurabi claims to have been granted his rule by the gods "to prevent the strong from oppressing the weak". https://en.wikipedia.org/wiki/Code_of_Hammurabi

Reposted by Anna O. Law, Richard S.J. Tol, Ken Caldeira , and 16 more

propublica.org
ProPublica @propublica.org · 1d
Sen. Susan Collins helped steer millions in federal defense contracts to Navatek, whose CEO illegally funneled thousands of dollars to her campaign.

The FBI sought to launch a probe and was eyeing Collins and other lawmakers.

Then Trump gutted the unit in charge. THREAD 🧵
Martin Kao, CEO of defense contractor Navatek, poses next to Sen. Susan Collins for a photo. Collins is holding a model of a boat in her hands. Behind them is a large sign with the Navatek logo.

kencaldeira.com
Ken Caldeira @kencaldeira.com · 1d
The usual framing is that gross production can go to labor or to capital.

More money is going to people who own stuff, and less money is going to people who work using stuff that other people own.

Reposted by Richard S.J. Tol, Ken Caldeira, Scott L. Greer

steverattner.bsky.social
Steve Rattner @steverattner.bsky.social · 2d
The labor share of economic output hit its lowest point on record in Q2 2026.

Reposted by Ken Caldeira, Michael D. McDonald

pamherd.bsky.social
Pam Herd @pamherd.bsky.social · 2d
The plan is paid for by taking child care supports away from low income parents (mothers), just as they're requiring these same families (women) to *work* to access Medicaid and SNAP. The real goal is to punish poor single mothers. www.nytimes.com/2026/09/21/u...
White House Plan to Subsidize Stay-at-Home Parents Divides Conservatives
Some praise the idea championed by Vice President JD Vance to direct federal money to support traditional families, while others say it cuts against conservative principles.
www.nytimes.com

Reposted by Ken Caldeira

pamspaulding.bsky.social
Pam Spaulding @pamspaulding.bsky.social · 2d
NEW: The Trump regime plans to "cripple the court by prohibiting it from conducting transactions in U.S. dollars, cutting it off from much of the global financial system" to protect war criminal Bibi.

Marco Rubio’s view is "that the ICC poses a threat to American sovereignty."

🎁 t2m.co/ZmzD7to9
Exclusive | Trump Ramps Up Bid to Dismantle International Criminal Court
The U.S. administration is preparing sweeping sanctions that would cut the court off from much of the global financial system.
www.wsj.com