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Ryan Katz-Rosene, PhD

@ryankatzrosene.bsky.social

Professor studying contentious CLIMATE POLITICS. Especially interested in aviation/high-speed rail; nuclear; green/de-growth; meat production/consumption; and all things CanadaπŸ‡¨πŸ‡¦. Co-Host http://EcopoliticsPodcast.ca Views are my own (not my employer's)!

34,409 Followers  |  4,091 Following  |  1,899 Posts  |  Joined: 10.08.2023
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Posts by Ryan Katz-Rosene, PhD (@ryankatzrosene.bsky.social)

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BEV owner satisfaction hits record high despite slowing EV demand, says JD Power Nearly all BEV owners surveyed (96%) indicated they would consider leasing another BEV for their next car (3 min. read)

"Nearly all BEV owners surveyed (96%) indicated they would consider leasing another BEV for their next carβ€”underscoring the staying power of the all-electric market even amid slowing U.S. demand and the rollback of federal policies that favor the powertrains."
news.dealershipguy.com/p/bev-owner-...

02.03.2026 17:24 β€” πŸ‘ 19    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1

Yeah the warming stripes one is relative to 1961-2010 baseline.

02.03.2026 15:02 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Earth's Monthly Energy Imbalance, 2001 through 2025. Trending up. More energy is being 'locked in' to the Earth system.

02.03.2026 15:00 β€” πŸ‘ 20    πŸ” 10    πŸ’¬ 2    πŸ“Œ 1
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Abrupt Gulf Stream path changes are a precursor to a collapse of the Atlantic Meridional Overturning Circulation - Communications Earth & Environment The northward shift and rapid displacement of the Gulf Stream provide an indirect early warning of Atlantic Meridional Overturning Circulation weakening and collapse, revealed by both high-resolution ...

Another potential early warning sign of an AMOC collapse described by vanWesten and Dijkstra. β€œThese findings provide indirect evidence for present-day AMOC weakening and demonstrate that abrupt Gulf Stream shifts can serve as early warning indicator for AMOC tipping”

www.nature.com/articles/s43...

02.03.2026 04:21 β€” πŸ‘ 41    πŸ” 15    πŸ’¬ 2    πŸ“Œ 2
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(Winters in Rhode Island)

02.03.2026 03:15 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 1
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Sort of. The graph I shared above is from CBC's Climate Dashboard. So they only have plots for Canadian locations. Nevertheless, the following two plots may be of interest: Left: "Warming Stripes" for Boston (Annual, not Winter); Right: Average Winter Temps, Massachusetts (not just Boston).

02.03.2026 03:13 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
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If feels like it's been a cold winter where I live. But it's actually not even close - Winters used to be way colder on average locally.

01.03.2026 23:27 β€” πŸ‘ 30    πŸ” 3    πŸ’¬ 4    πŸ“Œ 1
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Carbon dioxide overload, detected in human blood, suggests a potentially toxic atmosphere within 50 years - Air Quality, Atmosphere & Health Air Quality, Atmosphere & Health - Anthropogenic activities are increasing the amount of carbon dioxide (CO2) in the atmosphere. There is mounting experimental evidence that lifetime exposure...

Link to study: link.springer.com/article/10.1...

01.03.2026 14:06 β€” πŸ‘ 10    πŸ” 6    πŸ’¬ 1    πŸ“Œ 0

β€œIf these trends continue, blood bicarbonate values could be at the limit of the accepted healthy range in half a century, and Ca and P will be at the limit of their healthy ranges by the end of this century.”

01.03.2026 14:06 β€” πŸ‘ 6    πŸ” 4    πŸ’¬ 1    πŸ“Œ 1
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If the findings of this study are even remotely close to being accurate it would signify the *absolute incompetence* of the current Trump Administration’s decision to overturn the Endangerment Finding.

01.03.2026 14:06 β€” πŸ‘ 42    πŸ” 21    πŸ’¬ 9    πŸ“Œ 10
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From new criticism of the DOE CWG Report… link: doi.org/10.1029/2025...

28.02.2026 21:20 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
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β€œSatellite observations of this distinctive fingerprint are in accord with current state-of-the-art climate model estimates of human-caused temperature changes. The claim to the contrary made in the recent US Department of Energy review of climate science is factually incorrect.”

28.02.2026 21:20 β€” πŸ‘ 16    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
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Can't Stop, Won't Stop. Renewables generated what is equivalent to more than a QUARTER of US Electricity needs last year.

27.02.2026 18:17 β€” πŸ‘ 26    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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Climate mitigation costs money. But it ends up avoiding way more costs in the future.

26.02.2026 19:58 β€” πŸ‘ 94    πŸ” 40    πŸ’¬ 5    πŸ“Œ 7

(I know, sadly it means I’ll probably never code!)

24.02.2026 01:40 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Suggestions welcome!

(Also a huge shout out to @kevinroose.com and @caseynewton.bsky.social for introducing me to ClaudeCode and the whole idea of Vibecoding! Listen to Hard Fork!)

23.02.2026 23:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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This is truly insane. I've NEVER coded before. I didn't even have an Anthropic account. But I recently had an idea for a fun website to house all my favourite aurora chasing websites in ONE place. Downloaded Claude Code, and *within 1 hour*... this: iridescent-sundae-82b54e.netlify.app

23.02.2026 23:43 β€” πŸ‘ 8    πŸ” 0    πŸ’¬ 3    πŸ“Œ 0
https://academic.oup.com/qje/advance-article-abstract/doi/10.1093/qje/qjag011/8490467

https://academic.oup.com/qje/advance-article-abstract/doi/10.1093/qje/qjag011/8490467

Read the Abstract of this New paper by Bilal and KΓ€nzig β€œThe Macroeconomic Impact of Climate Change: Global Versus Local Temperatureβ€πŸ‘‡

23.02.2026 22:55 β€” πŸ‘ 28    πŸ” 14    πŸ’¬ 2    πŸ“Œ 0
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FIFTIETH SEASON!? Good Lord that makes me feel old!

23.02.2026 04:15 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 4    πŸ“Œ 0
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India comin' in hot!

21.02.2026 22:30 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
https://www.science.org/doi/10.1126/sciadv.adx8813

https://www.science.org/doi/10.1126/sciadv.adx8813

Extreme fire weather is increasing. This new study finds that "over half of the observed increase [in Synchronous Fire Weather] is attributable to anthropogenic climate change"... yet the Merchants of Doubtℒ️ want you to focus on how agricultural expansion in Africa has reduced global burn area.

20.02.2026 20:05 β€” πŸ‘ 24    πŸ” 8    πŸ’¬ 0    πŸ“Œ 2
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Emerging climate impact on carbon sinks in a consolidated carbon budget - Nature A re-assessment of the global carbon budget shows the natural land sink is substantially smaller than previously estimated, indicating emerging impacts of climate change on the evolution of the carbon...

And a more specific follow-up paper of relevance: www.nature.com/articles/s41...

19.02.2026 19:59 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Global Carbon Budget 2025 Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to bette...

It’s from the Global Carbon Project: essd.copernicus.org/preprints/es...

19.02.2026 19:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It's possible... as I think you know there is some scientific debate about this.

19.02.2026 17:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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James, nice to meet you! (Your paper scares the shit out of me πŸ˜…). My understanding from recent work by GCP is that global land and ocean sinks are indeed becoming less efficient, but in NET terms are still growing, no?

19.02.2026 17:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Explainer: Will global warming β€˜stop’ as soon as net-zero emissions are reached? - Carbon Brief Warming is likely to more or less stop once net-zero emissions of carbon dioxide (CO2) is reached, meaning humans have the power to choose their climate future.

That's generally the prevailing understanding of the science:
www.carbonbrief.org/explainer-wi...

19.02.2026 14:38 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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Interesting visual from Global Carbon Project showing annual emissions (bottom black filled curve) and rising CO2 atmospheric concentrations (red curve). Warming only stops when we reach Net Zero.

19.02.2026 03:02 β€” πŸ‘ 38    πŸ” 13    πŸ’¬ 2    πŸ“Œ 4
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Here’s a free idea for you tech bro entrepreneurs who want to make the world a better place πŸ‘‡

18.02.2026 15:04 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
From: https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Space_for_our_climate/Revealed_10_new_insights_in_climate_science

From: https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Space_for_our_climate/Revealed_10_new_insights_in_climate_science

β€œA significant decline in land-based carbon uptake in 2023 raises concerns that more carbon may remain in the atmosphere, shrinking the remaining carbon budget. Northern hemisphere ecosystems – once considered relatively resilient – are increasingly affected by wildfires and permafrost thaw.”

18.02.2026 14:59 β€” πŸ‘ 15    πŸ” 3    πŸ’¬ 0    πŸ“Œ 1
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They don’t want you to know!

18.02.2026 13:35 β€” πŸ‘ 19    πŸ” 7    πŸ’¬ 3    πŸ“Œ 0