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Chris Lewis

@chrislewis

Writing about food security in a hot and stormy world. PhD student at UW-Madison. https://toughgrowing.substack.com/

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31.10.2023
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Latest posts by Chris Lewis @chrislewis

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69/ I agree. Impact of Iran war is STRUCTURAL shift to electrification stack. Read Lauri's thread: "The real, lasting effect of the 2021-22 fossil fuel crisis was a major acceleration in solar that pushed coal down *faster* than the pre-crisis trendline in the following years." x.com/laurimyllyvi...

12.03.2026 15:57 ๐Ÿ‘ 18 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Chartbook 436 Unseasonal war. How the US-Israeli war on Iran threatens the global agricultural cycle. One impact of the war being waged by the US and Israel against Iran that is not getting as much attention as it deserves, is the impact on the global supply of fertilizer.

"The gulf region handles about one third of the global trade in inorganic nutrients and in terms of the agricultural cycle this is the key moment for shipments to be steaming out from the Gulf towards the major agricultural zones of the world."

adamtooze.substack.com/p/chartbook-...

11.03.2026 14:34 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
A shallot from driveway raised beds

A shallot from driveway raised beds

Was starting to prep some raised beds and accidentally dug up this overwintered shallot.

First harvest of 2026!

10.03.2026 22:24 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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War in the Middle East Threatens Global Food Production

A large fraction of the worldโ€™s synthetic fertilizer is stuck in the Strait of Hormuz

09.03.2026 14:45 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Interesting illustration of AI's parasitic nature. If some of these sites close, it'll start losing some of its training data...

04.03.2026 20:07 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Via www.cleanwisconsin.org/wp-content/u...

04.03.2026 20:06 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Only 3% of Wisconsin corn is consumed by humans.

04.03.2026 20:06 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Good example; suggests that what gets counted as "technology" has a big impact on answers to this question. How about agrivoltaics?

Personally I'm very excited about innovation in carbon-sequestering perennial ag from places like @savannainstitute.bsky.social. Is that technology?

23.02.2026 16:03 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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I dunno man

21.02.2026 21:37 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Cc @mtkonczal.bsky.social @mattyglesias.bsky.social @70sbachchan.bsky.social

20.02.2026 15:04 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Why it matters that people are arguing about DoorDash on the internet Hereโ€™s an interaction from deep in the weeds of economics Twitter, one that cuts to the core of a genuinely confusing question about American public life in the 2020s:

Against my better judgment, I waded into the @adamtooze.bsky.social DoorDash fiasco.

When public opinion clashes with the data, we should still take public opinion seriously (though maybe not literally).

toughgrowing.substack.com/p/why-it-mat...

20.02.2026 15:03 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

Rice contribution is eye-popping ๐Ÿ˜ฎ

18.02.2026 21:11 ๐Ÿ‘ 9 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Sincere question what is he actually trying to say here?

14.02.2026 19:37 ๐Ÿ‘ 16 ๐Ÿ” 1 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

British colonial officials personally trained by Thomas Malthus delivered less aid than peers during Indian droughts.

ericnrobertson.github.io/files/jmp.pdf

14.02.2026 19:24 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Harvested some basement grow light basil last night.

06.02.2026 18:48 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

little item for the Senate Dems to ponder: which of the reforms youโ€™re currently floating is going to stop this?

04.02.2026 17:41 ๐Ÿ‘ 2905 ๐Ÿ” 620 ๐Ÿ’ฌ 68 ๐Ÿ“Œ 20

Is it just me or are many people misinterpreting what he said? Pretty clear his point was about relative desirability (considering cost/time/hassle/etc) and not strictly cost. How much energy are you investing to replicate a halal cart meal?

Still reasonable to dispute that take of course...

03.02.2026 18:12 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I don't question the core premise of the article. But list price shouldn't be confused for some iron measure of value. In our market it was widely known for years that sellers expected offers above listing. Possible that prices are also adjusting to those expectations.

02.02.2026 15:37 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

...and our job is to defeat fossil power on all the open fronts. Minneapolis is one, methane regulations are another.

26.01.2026 21:27 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

...the country's economic and political institutions.

Our adversaries now could easily be called the "fossil power" or "fossil capital." I think it's helpful to think that way. ICE raids and climate change are in some sense different issues, but both perpetrated by the agents of fossil power...

26.01.2026 21:26 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Slave Power - Wikipedia

I think we can learn a lot from the abolitionists who talked about the "slave power." As I understand it, the term meant to convey that abolitionists were fighting not just a set of individual slaveowners, but a power structure that had tentacles spread throughout..

en.wikipedia.org/wiki/Slave_P...

26.01.2026 21:22 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Crop yields are down in Guatemala. Will it last? Plus: the long-awaited decline of fossil fuels? Genius dogs. A no-effort herb preservation method.

In Guatemala, successive years of bad weather have led to stagnation and decline of maize and bean harvests. Is it an aberration, or a new normal fueled by climate change?

26.01.2026 20:04 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

"Ability to be moderate" -> essentially meaning general good judgment when it comes to health? Or do you mean there are other, specific confounders producing this result?

26.01.2026 15:50 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Statement from Michael and Susan Pretti
Parents of Alex Jeffrey Pretti

โ€œWe are heartbroken but also very angry.

Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital. Alex wanted to make a difference in this world. Unfortunately, he will not be with us to see his impact.

I do not throw around the โ€˜heroโ€™ term lightly. However, his last thought and act was to protect a woman. The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trumpโ€™s murdering and cowardly ICE thugs. He had his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down, all while being pepper sprayed. 

Please get the truth out about our son. He was a good man. Thank you.

Statement from Michael and Susan Pretti Parents of Alex Jeffrey Pretti โ€œWe are heartbroken but also very angry. Alex was a kindhearted soul who cared deeply for his family and friends and also the American veterans whom he cared for as an ICU nurse at the Minneapolis VA hospital. Alex wanted to make a difference in this world. Unfortunately, he will not be with us to see his impact. I do not throw around the โ€˜heroโ€™ term lightly. However, his last thought and act was to protect a woman. The sickening lies told about our son by the administration are reprehensible and disgusting. Alex is clearly not holding a gun when attacked by Trumpโ€™s murdering and cowardly ICE thugs. He had his phone in his right hand and his empty left hand is raised above his head while trying to protect the woman ICE just pushed down, all while being pepper sprayed. Please get the truth out about our son. He was a good man. Thank you.

Kare 11 local news just read, in full, this statement from Michael and Susan Pretti, the parents of Alex Pretti.

"Please get the truth out about our son."

25.01.2026 00:43 ๐Ÿ‘ 24922 ๐Ÿ” 12845 ๐Ÿ’ฌ 200 ๐Ÿ“Œ 448
Large brick wall with a tiny white signat the base of the wall  that says "Slavery was real"

Large brick wall with a tiny white signat the base of the wall that says "Slavery was real"

"Slavery was real"

Tiny sign at the base of a brick wall that, until yesterday, held panels about the people enslaved by George Washington.

Presidents House, Philadelphia.

23.01.2026 15:22 ๐Ÿ‘ 8696 ๐Ÿ” 3255 ๐Ÿ’ฌ 99 ๐Ÿ“Œ 156
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Does efficient irrigation technology lead to reduced groundwater extraction? Empirical evidence Encouraging the use of more efficient irrigation technology is often viewed as an effective, politically feasible method to reduce the consumptive useโ€ฆ

The perils of efficiency: more efficient irrigation technology in western Kansas led to more total groundwater being extracted, not less. Once farmers were able to capture more water, they switched to thirstier and more profitable crops.

23.01.2026 16:15 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Mapping Microscale pH Dynamics at Soilโ€“Straw Interfaces Under Fluctuating Moisture Conditions The incorporation of crop straw creates decomposition hotspots, and the microscale variability of pH in soil-straw hotspots is a critical driver of microbial activity and nutrient cycling. However, l...

A reminder that the soil micro-environment is much more diverse than our soils tests tell us.
"At this scale, pH can vary by more than 1 unit over mm or sub-mm distances, driven by localized microbial activity or organic matter decomposition." bsssjournals.onlinelibrary.wiley.com/doi/10.1111/...

14.01.2026 17:48 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Instead of whatever this is, we should have a government getting lots of new homes and apartments built, lots of clean energy built, lots of high speed rail and transit and bike lanes built, human rights for everyone, economic & healthcare opportunities for all, & innovation that leads the world.

04.01.2026 02:12 ๐Ÿ‘ 3842 ๐Ÿ” 762 ๐Ÿ’ฌ 53 ๐Ÿ“Œ 70