Deirdre
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flowinguphill.bsky.social
Deirdre
@flowinguphill.bsky.social
Climate change and societal shifts from a complex systems perspective. Countering hate and disinformation.
Reposted by Deirdre
mom they’re roasting the US economy on mastodon again
February 16, 2026 at 7:37 AM
Reposted by Deirdre
Doom scrolling is doomed
The EU moves to kill infinite scrolling
Brussels is going head-to-head with social media platforms to change addictive design.
www.politico.eu
February 14, 2026 at 9:47 AM
Stretched Thin: Protestant Attorneys Face Overlapping Delta Conveyance Project Hearings

The week of February 23-27 presents attorneys representing Delta communities with an impossible calendar. The State Water Board's Delta Conveyance Project water rights hearing has added February 23, 24, and 25…
Stretched Thin: Protestant Attorneys Face Overlapping Delta Conveyance Project Hearings
The week of February 23-27 presents attorneys representing Delta communities with an impossible calendar. The State Water Board's Delta Conveyance Project water rights hearing has added February 23, 24, and 25 as hearing days. The Delta Stewardship Council has scheduled its appeal hearing on DWR's certification of consistency with the Delta Plan for February 26 and 27—and has required that parties appear in person.
cah2oresearch.com
February 13, 2026 at 6:17 PM
DWR’s Selective Conflict: It Applies in Court, But Not Before the Agencies

On Monday, February 9, 2026, Administrative Hearing Officer Nicole Kuenzi denied Somach Simmons & Dunn's motion to stay the Delta Conveyance Project water rights hearing pending resolution of DWR's disqualification motion…
DWR’s Selective Conflict: It Applies in Court, But Not Before the Agencies
On Monday, February 9, 2026, Administrative Hearing Officer Nicole Kuenzi denied Somach Simmons & Dunn's motion to stay the Delta Conveyance Project water rights hearing pending resolution of DWR's disqualification motion in Sacramento Superior Court. The hearing will continue as scheduled, with most of the protestants' rebuttal case likely to conclude before the March 20 court hearing on DWR's motion.
cah2oresearch.com
February 12, 2026 at 4:52 AM
Court Grants Stay in Delta Conveyance CEQA Cases — Judge Questions DWR’s Position

Sacramento County Superior Court Judge Stephen Acquisto today granted Somach Simmons & Dunn’s motion to stay the consolidated Delta Conveyance Project CEQA cases through March 27, 2026. He set a hearing on DWR’s…
Court Grants Stay in Delta Conveyance CEQA Cases — Judge Questions DWR’s Position
Sacramento County Superior Court Judge Stephen Acquisto today granted Somach Simmons & Dunn’s motion to stay the consolidated Delta Conveyance Project CEQA cases through March 27, 2026. He set a hearing on DWR’s motion to disqualify the firm as counsel for Sacramento County and the City of Stockton for March 20, 2026. From the bench, the judge described the potential disqualification as “monumental.” He indicated that he understood how severely it would impact Somach’s clients: local governments representing approximately two million Delta-area residents who have relied on the firm’s representation in Delta Conveyance matters since 2007.
cah2oresearch.com
February 7, 2026 at 4:35 AM
State Tries to Sideline Sacramento & Stockton’s Lawyers — Court Hears Stay Request

On January 23, 2026, the California Department of Water Resources (DWR) filed a motion in Sacramento County Superior Court seeking to disqualify the law firm of Somach Simmons & Dunn, longtime counsel for the County…
State Tries to Sideline Sacramento & Stockton’s Lawyers — Court Hears Stay Request
On January 23, 2026, the California Department of Water Resources (DWR) filed a motion in Sacramento County Superior Court seeking to disqualify the law firm of Somach Simmons & Dunn, longtime counsel for the County of Sacramento, the City of Stockton, in three of the ten consolidated cases challenging DWR’s approvals of the Delta Conveyance Project. Somach has represented these local governments on Delta matters since 2007.
cah2oresearch.com
February 6, 2026 at 6:01 AM
Reposted by Deirdre
In a new article over at Carbon Brief, I explore why the past three years – 2023, 2024, and 2025 – have been exceptionally warm. The main culprits turn out to be a combination of El Nino and internal variability, declining aerosols, and a strong solar cycle: www.carbonbrief.org/...
December 11, 2025 at 4:34 PM
Response to Jay Lund’s “Nine California Water Rites”

Jay Lund published a clever satire of California water rhetoric today, and he's right that policy-based evidence-making occurs in our water debates.

But Jay's framing misses something critical…

cah2oresearch.com/2025/12/01/r...
Response to Jay Lund’s “Nine California Water Rites”
Jay Lund published a clever satire of California water rhetoric today, and he’s right that policy-based evidence-making occurs in our water debates. I worked with Jay and other Delta Independ…
cah2oresearch.com
December 2, 2025 at 2:41 AM
Reposted by Deirdre
Meteorologists are surprised that the weather model that did the best job forecasting hurricanes this year was a new one, introduced by Google. AI may be the beginning of a new era of forecasting. n.pr/49MFa1M
As the 2025 Atlantic hurricane season ends, the future of forecasting is AI
Meteorologists are surprised that the weather model that did the best job forecasting hurricanes this year was a new one, introduced by Google. AI may be the beginning of a new era of forecasting.
n.pr
November 30, 2025 at 3:26 AM
Reposted by Deirdre
If you’re interested in why the #Antarctic overturning circulation is very likely closer to a tipping point than the #AMOC, I touch on the topic in this 10 minute talk presented virtually today at #COP30. Starts at approx. 20 min mark.
Antarctic science at COP30 🌍❄️

A panel of Australian scientists, including ACEAS Deputy Director @profmattengland.bsky.social (UNSW), today shared insights about abrupt changes unfolding across the #Antarctic environment at the #COP30 Cryosphere Pavilion.

Watch now: www.youtube.com/live/YjYkKvw...
Policy Briefing: Emerging Evidence of Abrupt Changes in the Antarctic Environment
YouTube video by International Cryosphere Climate Initiative
www.youtube.com
November 18, 2025 at 5:22 AM
Reposted by Deirdre
Short 🧵. Several folks routinely do a great job updating global mean temperature comparisons between observations & different model generations, which shows their impressive skill, but I think as a public communication tool downplays the explanatory and predictive power of climate science 1/
In a UN speech today, President Trump said that "all of these [climate] predictions were wrong".

Back in 2019 I led a research effort to digitize old climate model projections and assess how well they did. Turns out they got future warming pretty spot on!
September 23, 2025 at 10:56 PM
Reposted by Deirdre
September 2025 was the third warmest on record in the Berkeley Earth dataset. But this downplays how anomalous it was; without 2023 and 2024 this year would have been well above any prior records and well above the long-term trend:
October 23, 2025 at 9:43 PM
Reposted by Deirdre
In that moment Ged understood the singing of the bird, and the language of the water falling in the basin of the fountain, and the shape of the clouds, and the beginning and end of the wind that stirred the leaves.
October 19, 2025 at 3:45 AM
Reposted by Deirdre
📢 Submissions are now open for the U.S. Climate Collection, a joint @theAGU + @ametsoc initiative.

This special collection will publish U.S.-focused climate assessment science that’s free to read, ensuring rigorous, accessible science informs decisions for years to come.

🔗 buff.ly/1tHUSLC
September 25, 2025 at 1:37 PM
Reposted by Deirdre
In a UN speech today, President Trump said that "all of these [climate] predictions were wrong".

Back in 2019 I led a research effort to digitize old climate model projections and assess how well they did. Turns out they got future warming pretty spot on!
September 23, 2025 at 5:01 PM
Reposted by Deirdre
my mom took tylenol when she was pregnant, which made me super focused on menswear and now i have a million followers on twitter
September 22, 2025 at 11:10 PM
From DeepSeek. Why I find modern transformer models to be fascinating.
September 21, 2025 at 3:58 PM
Reposted by Deirdre
My co-author @peterhotezmdphd.bsky.social and I spoke with @drkiki.bsky.social about our new book #ScienceUnderSiege earlier today on the #ThisWeekInScience podcast: www.youtube.com/watch?v=ILJE...
This Week in Science Podcast (TWIS) - Episode 1030
YouTube video by This Week in Science (TWIS)
www.youtube.com
September 19, 2025 at 9:25 PM
Anthropic told U.S. law-enforcement contractors they cannot use Claude AI for domestic surveillance.

The Trump White House is angry, seeing the ban as unpatriotic and politically selective.
www.semafor.com/article/09/1...
Anthropic irks White House with limits on models’ use
The AI firm declined requests by contractors working with federal law enforcement that could see its tools being used for surveillance.
www.semafor.com
September 18, 2025 at 4:47 AM
Reposted by Deirdre
It's hard to overstate just how off the charts warm the Pacific is right now. The swath of the basin from California to Japan (a HUGE area) from 25N to 60N is ~3F (1.6C) above normal. To put it into math terms that is 6 Sigma/ standard deviations above the mean. More… 1/
September 16, 2025 at 2:08 AM
Reposted by Deirdre
I do not care what comes after; I have seen the dragons on the wind of morning.
September 14, 2025 at 7:21 PM
This gives me some hope.
September 11, 2025 at 8:14 AM
From Lumi
September 10, 2025 at 10:33 PM