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Jon Rosenfield

@jarosenfield.bsky.social
990 followers 557 following 905 posts

Scientist; Advocate for conservation of fish, fisheries, water quality, & communities that depend on them; Dog lover; Birder; Backpacker, Sea kayaker, etc. Opinions my own.

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Reposted by Jon Rosenfield
David Roberts @volts.wtf · 7h
You often hear that clean energy is not replacing fossil energy, only adding to total energy, and thereby not reducing emissions. ("There is no transition," they say.) It's nonsense. Read this post from @zekehausfather.com about how much FF has been displaced by renewable energy:
theclimatebrink.com
What if the world hadn't built wind and solar?
Clean energy does not simply “add to” global energy use; it displaces fossil sources that would otherwise get built.
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#VeryAsian Eric @ektaka.bsky.social · 05/10/2026
He had two years to pass a really great healthcare plan. Instead, the Republicans' sabotage of Obamacare and Medicare is only making it harder and more expensive for the average American to get adequate healthcare. Another two years of Republican rule will only make things worse. #VoteBlue
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Raider @iwillnotbesilenced.bsky.social · 06/10/2026
Thousands of Cornell students have taken over the main plaza on campus to demand the Cornell 7 be held accountable for their crimes. 21% of undergraduate women are raped or sexual assaulted during their time on campus.
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🦋 C.G., PhD 🐸 (🪖"Prima" AKA "Battle" to One)🌻 @tcrg2012.bsky.social · 03/10/2026
Happy 34th Anniversary to Barack and Michelle Obama! 🥂 I MISS OUR COUNTRY UNDER THEIR LEADERSHIP! Grace and power at its finest. #ONEV1 #Pinks 🌸 #Voices4Victory
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Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 03/10/2026
Reason n+1 not to post things about children
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David Roberts @volts.wtf · 03/10/2026
I'm not good at math, is $800 million a lot?
electrek.co
FedEx believes $300M electric truck spend will save them $800M in diesel
In a record-setting commercial truck deal, international shipping giant FedEx has placed an order for 2,000 all-electric box trucks from...
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Mark Jacob @markjacob.bsky.social · 30/09/2026
The Republican Party is a clubhouse for domestic abusers.
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Adam Cohen (My Personal Views Only) @axidentaliberal.bsky.social · 30/09/2026
The most bizarre thing about this idiotic, embarrassing line of questioning by Eric Schmitt is that it’s totally irrelevant Even if Jack Smith went to a basketball game in Atlanta-he didn’t-there isn’t even a scintilla of proof that he met, much less conspired with Fani Willis 35 days
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Ben Collins @bencollins.bsky.social · 29/09/2026
Gobsmacked by the elite levels of not knowing ball in the Senate today, thinking an NBA team is called the Hawkeyes then, refusing to Google it, then accusing a guy of treason because you didn’t know the Iowa Lady Hawkeyes aren’t in the NBA. Somehow I don’t trust these people to Save Girls Sports.
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Scott Horton @robertscotthorton.bsky.social · 30/09/2026
By vote to 47 to 51, with John Fetterman siding with the Republicans, the US Senate officially declared it was perfectly fine with Israel murdering nine Americans, and it had no interest in demanding any explanation for the murders. www.theguardian.com/us-news/2026...
theguardian.com
US Senate blocks resolution demanding accountability over Israeli violence in West Bank
Nine American citizens have been killed by Israeli settlers or security forces in occupied West Bank since 2022
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J. Emory Parker 🏳️‍🌈 @jaspar.bsky.social · 29/09/2026
Meta muse saying why would I deceive you?
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Lori Lou Freshwater @lorifreshwater.bsky.social · 03/03/2026
Indigo butterflies at my sacred mountain in Western North Carolina 🦋🦋🦋 #worldwildlifeday #bluesky
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Nikki @varivergirl.bsky.social · 25/09/2026
Supreme Court allows Trump administration to use expanded database for potential voter purges www.nbcnews.com/politics/sup...
nbcnews.com
Supreme Court allows Trump administration to use expanded database for potential voter purges
Critics have said the data could lead to U.S. citizens being kicked off the voter rolls, but the justices noted the law prohibits broad voter purges in the weeks leading up to an election.
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Jake Anbinder @jakeanbinder.bsky.social · 24/09/2026
can't believe the car that runs on millions of tiny explosions transmitting energy through a complex series of oily metal parts doesn't last as long as the one that's four wheels attached to a battery
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Ron Filipkowski @ronfilipkowski.bsky.social · 24/09/2026
Every one of these people view their positions in the government as an opportunity to cash in on multiple grifts while traveling the world and having a great time at our expense.
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Celeste Headlee @celesteheadlee.bsky.social · 24/09/2026
So, Banksy bought a used yacht, repaired it and retrofitted it to serve as a rescue boat to save migrants in the central Mediterranean. The whole project cost the artist $860,000. Since 2020, the boat has saved more than 3,800 people. londondaily.com/banksy-funds...
londondaily.com
Banksy funds refugee rescue boat operating in Mediterranean - London Daily
Exclusive: UK artist finances bright pink motor yacht that set sail in secrecy to avoid being intercepted by authorities
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shauna @goldengateblond.bsky.social · 23/09/2026
i don’t know how to make it any plainer that the vast majority of dem voters believe holding people accountable IS part of “getting back to work”
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Jon Rosenfield @jarosenfield.bsky.social · 24/09/2026
“There was absolutely ample water available to keep the river colder,” said Jon Rosenfield, science director for @sfbaykeeper.bsky.social, but the Trump admin chose to deliver large quantities of from Shasta reservoir this summer. “The fish are not being protected...those eggs are getting cooked.”
latimes.com
This major California river has gotten too warm for its salmon
The Sacramento River has gotten too warm for salmon eggs. Environmental advocates blame the Trump administration for taking too much water out of Shasta Lake.
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ghost malone ergo propter bones @proptermalone.bsky.social · 23/09/2026
it does seem suspicious that Lady Gaga would choose to have her baby at *checks notes* the largest hospital system in Southern California
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Jon Rosenfield @jarosenfield.bsky.social · 23/09/2026
RFK Jr should be the 1st of several impeachments in the next Congress. #ImpeachRFKJr #Vote
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public health guy @publichealthguy1.bsky.social · 23/09/2026
“They’re using every means possible to try and make it harder to get vaccinated”
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San Francisco Baykeeper @sfbaykeeper.bsky.social · 22/09/2026
"The fish are not being protected," said Baykeeper science director @jarosenfield.bsky.social. "We know that those eggs are getting cooked."
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CalMatters @calmatters.org · 22/09/2026
Newsom vetoes bill meant to protect homes and schools from polluting manufacturers The bill would've narrowed a manufacturing exemption Newsom pushed last year. Its author says she'll try again in 2026.
cal.news
Newsom vetoes bill meant to protect homes and schools from polluting manufacturers
The bill would've narrowed a manufacturing exemption Newsom pushed last year. Its author says she'll try again in 2026.
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Jack Hopkins-The Original @therealjackhopkins.bsky.social · 20/09/2026
What does a sniper position at Memorial Circle actually defend against? Not China. Not a submarine. Not a missile. It overlooks a bridge, a traffic circle, and the front door of the National Mall. Those are places where Americans march. www.jackhopkinsnow.com
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Pé 🍺🧿 @forevernever.bsky.social · 20/09/2026
Don't compromise with bigots. Should be an obvious political strategy. The bigots will still hate you, make up lies about how you want to mutilate children or something and never vote for you, and now you're a bigot yourself.
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M Meerkat @kackbro.bsky.social · 18/09/2026
THIS 👇 HERE.......
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Fr. Robert Ballecer, SJ @padresj.bsky.social · 19/09/2026
It's strange how Democratic Socialists - who are being denounced by both parties - turned major deficits into balanced budgets in both New York and Seattle.
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Scott MacFarlane @macfarlanenews.bsky.social · 19/09/2026
We don’t need our journalistic watchdogs to have “access” to Trump Everyone in the press room should walk out in protest … and source up.
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One Hashtag Birds @one-hashtag-birds.bsky.social · 19/09/2026
White-tailed Kites flying in tight formation #birds
White-tailed Kites flying in tight formation
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Peter Gleick @petergleick.bsky.social · 18/09/2026
Given the outrageous, dangerous, and outright false statements made about how the polio (and other) vaccine was a "fraud" (at the Children's Health Defense conference), here's a reminder of what a massive success it was. RFK Jr. & his minions must be stopped from destroying the US healthcare system.
Graph of the number of cases and deaths from polio from 1910 to 2022, showing how polio completely disappeared after the introduction of the vaccine -- one of the most important health advances of the 20th century. Data from the US Public Health Services; the Center for Disease Control.
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Caroleeena @caroleeena.bsky.social · 18/09/2026
As a long, long, long, long, long time Converse buyer, I will never buy a Converse product ever again. I am sick of the virtue signalling to racists. I see this and I see a man hanged, a white robe that could be a klansman's robe and light shaped like a KKK hat. What the actual hell!?!
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Jerkica @jerricaharding.bsky.social · 19/09/2026
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Allison Gill @muellershewrote.com · 19/09/2026
2/
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Raider @iwillnotbesilenced.bsky.social · 19/09/2026
People are forming a human chain around the Kennedy Center to prevent it from being demolished after Trump couldn't put his name on it.
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Mark Jacob @markjacob.bsky.social · 18/09/2026
Are journalists going to ask Republican candidates why they're accepting campaign help from white supremacist Elon Musk? Or is racist rhetoric about ethnic cleansing considered normal now?
Photo of Musk giving a salute that looks like the Nazi salute
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Barred and Boujee aka Madiba Dennie @audrelawdamercy.blacksky.app · 18/09/2026
i'm not over Alito saying we shouldn't count ballots that are mailed on or before Election Day but arrive shortly afterwards bc they can “radically flip” the “apparent outcome” cannot stress enough that, until all ballots are counted, there's no outcome to flip! ballsandstrikes.org/scotus/alito...
ballsandstrikes.org
A Brief History of Sam Alito’s Delusional Obsession With Voter Fraud
His conduct in several recent cases suggests that Alito is deep in the right-wing conspiracy theory weeds.
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Matthew R Francis @bowlerhatscience.org · 17/09/2026
speaking as a science journalist who is also a trained physicist, this is the FUCKING WORST POSSIBLE THING. This is the opposite of trustworthy. You can't trust a damn thing an "AI agent" tells you. An article needs to be unchanged between queries, or any change needs to be documented clearly.
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jamelle @jamellebouie.net · 14/09/2026
this guy is one of the architects of a war that might rank as one of the worst strategic missteps in american military history and here is on CBS getting a softball interview about his feelings
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Dr. Jonathan Foley @globalecoguy.bsky.social · 13/09/2026
Regenerative grazing has gotten a lot of buzz — maybe thanks to big money from the beef industry? — but it’s NOT an effective climate solution. I wish it was. But it’s time to move on from greenwashing and focus on things that work.
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Qasim Rashid, Esq. @qasimrashid.com · 13/09/2026
$5000 midterm bribe for 330M Americans costs $1.6 Trillion GOP:¯\_(ツ)_/¯ Meanwhile: •Insulin for diabetics: $40B •Universal Pre-K: $60B •Universal 4-yr-college: $70B •SNAP for 40M Americans: $80B •Cancel all medical debt: $150B •$1.2T REMAINS GOP: HoW wE gOnNa AfForD iT? SOCIALISM COMMUNISM NOO!
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Christopher Webb @cwebbonline.com · 13/09/2026
Here is AOC and Mamdani laughing at the solemn 9/11 commemoration. Oh wait…
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Philip Bump @pbump.com · 11/09/2026
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Mark Jacob @markjacob.bsky.social · 10/09/2026
Desperate hack with no credibility promises to bribe people with their own money.
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Olúfẹ́mi O. Táíwò @olufemiotaiwo.bsky.social · 08/09/2026
at this point: carbon removal is, at best, essentially a research project. renewable expansion is a policy project
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Prisonculture @prisonculture.bsky.social · 09/09/2026
In what universe would a white Mayor be told he could not attend a commemoration in Oklahoma City because "Timothy McVeigh?"
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Merriam-Webster @merriam-webster.com · 09/09/2026
Not to brag, but our product has been foldable since 1828.
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Jordan aka Jirdan @slclunk.com · 09/09/2026
Any answer other than “who gives a shit, republicans are using a dozen kids playing JV volleyball as a distraction from looting the county and covering for elite pedophiles” is cowardly horseshit
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jamelle @jamellebouie.net · 09/09/2026
my bet is that he'll flip if it's a 50-50 or 51-49 dem senate, so dems need to somehow get to 52 to be safe
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Clara Jeffery @clarajeffery.bsky.social · 10/09/2026
Democrats should assume they need to flip five seats now. He'll never be reelected, by either party, but we're stuck with him until 2029. www.nytimes.com/2026/09/09/u...
nytimes.com
Fetterman Praises Trump in Video Broadcast at Republican Convention
The appearance of a Democrat lauding the policies of an administration that his party is claiming has made life harder for Americans was a stunning turn and a boon for President Trump.
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