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John Mann

@jm493.bsky.social
2.1K followers 842 following 373 posts

Melbourne, Australia Born 313 ppm CO2 Interested in - Renewables energy transition - Slide rules and other old technology - Linux and network automation - Quality political representation - Christmas Lights Previously jm493_au on Twitter

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Reposted by John Mann
Mike Holloway @mikeholloway.bsky.social · 31/10/2025
🧪 #resistrfk #defendresearch #standupforscience #RFKJr #Vaccines #HHS #CDC #antivax Thread
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Ketan Joshi @ketanjoshi.co · 07/10/2025
You can't fix offsets, because they're not really broken They are designed from the ground up as a way for polluters to falsify climate action, and for disgustingly rich bankers to divert funds away from frontline communities As long as fossil fuels exist, offsets will exist Good paper! -->>>
annualreviews.org
Are Carbon Offsets Fixable?
This article provides a systematic review of the literature on carbon offsets. A growing number of studies have found that the most widely used offset programs continue to greatly overestimate their p...
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Reposted by John Mann
Jan Rosenow @janrosenow.bsky.social · 28/09/2025
Pollutting now and cleaning up later is not a viable strategy: Direct Air Capture (DAC) is hitting a hard reality check. Costs are falling much slower than anticipated, casting doubts on the nascent technique’s role in tackling climate change.
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Dr Monique Ryan @mon4kooyong.bsky.social · 03/09/2025
In 2022, with a two seat majority, the Albanese government legislated our first climate targets. In 2025, with a supermajority, it’s claiming it lacks political support to update those targets. It’s time for transparency about climate risk and our climate targets. www.abc.net.au/news/2025-09...
abc.net.au
Bowen says political environment may prevent 2035 emissions target becoming law
The climate change minister says he will have to assess whether legislating the government's 2035 emissions target is politically feasible, with the major waypoint towards net zero due to be announced...
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John Mann @jm493.bsky.social · 03/09/2025
If Germany hadn't decided to shutdown nuclear power - they wouldn't have worked so hard getting solar down the cost curve - people in all countries wouldn't be benefiting from cheap solar - Germany would have remained nuclear+fossil [ Germany now burns less coal than at any time they had nuclear ]
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John Mann @jm493.bsky.social · 26/08/2025
www.climatecouncil.org.au/actions/peti...
climatecouncil.org.au
Call on the Government to set the strongest possible 2035 climate target - and take urgent action to meet it | Climate Council
If you believe the Government must go further and faster to protect Australians and slash climate pollution by 2035 - please add your name today.
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Reposted by John Mann
ice.cream.assassin (spooky edition) @icassassin.bsky.social · 19/08/2025
I genuinely believe that we as a society have made a big mistake by not *constantly* calling Donald Trump stupid. That actual fucking word. None of this pussyfooting with strongly implying - we need to use ths word stupid because Donald Trump is the stupidest motherfucker on the planet.
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John Mann @jm493.bsky.social · 09/08/2025
Try e.g. archive.vn/7oaZ8 Looks like it has a Raspberry Pi Compute Module 4 (CM4) inside. No wonder they aren't cheap.
A disassembled Halo 3C smoke and vape detector found to include microphones. Courtesy of Reynaldo Vasquez-Garcia and Nyx
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Reposted by John Mann
Josh Johnson @joshjohnsoncomedy.bsky.social · 26/07/2025
When you strip away humanity
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Ember @ember-energy.org · 26/07/2025
Electrification isn’t new. It has been transforming global energy use for over a century. Here is the history of electrification in six moments and today’s defining 🧵 1/10
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John Mann @jm493.bsky.social · 27/07/2025
Narrator: In the past, lots of people did die due to things that we now know are preventable.
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Reposted by John Mann
Ketan Joshi @ketanjoshi.co · 26/07/2025
MORNING AUSTRALIA I found a fun and frightful little chart buried in the government's own data, revealing that even they expect domestic gas consumption to never return to its glory days THE GAS SHORTAGE IS A BIG LIE USED TO JUSTIFY EASING APPROVALS = SUBSIDIES FOR HUGE NEW FF PROJECTS
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John Mann @jm493.bsky.social · 21/07/2025
Your link helped me find Museum of Computing Instruments www.msc.sma.unipi.it 😀
tripadvisor.com
Museo degli Strumenti per il Calcolo (2025) - All You Need to Know BEFORE You Go (with Reviews)
Most Recent: Reviews ordered by most recent publish date in descending order.
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Glen @gergyl.bsky.social · 20/07/2025
Faark ... that's nearly AUD$25,000/kW of installed capacity. No, really, faark. And you haven't paid to run it yet, insured the site disaster risk (that is commercially impossible), even bought the fuel, or sorted the waste disposal (how?), or npv'd the eventual decommissioning cost. Faark.
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John Mann @jm493.bsky.social · 20/07/2025
Thanks. We are visiting Lucca in May next year, so visiting Florence is definitely possible.😀 Any other suggestions for interesting technology sites to visit in Tuscany?
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John Mann @jm493.bsky.social · 18/07/2025
Yes. *Resilience* is just as important as reliability. When some things do go wrong (as they eventually will), it's essential to have the equipment, procedures and settings all working together to prevent the problem propagating - and maintain services for all/most customers.
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Reposted by John Mann
Professor Euan Ritchie FAMS @euanritchie.bsky.social · 16/07/2025
Well-said, @ketanjoshi.co. Fatalism supports apathy and leads to deeper failure. I’ll pass, David. www.crikey.com.au/2025/07/14/c...
crikey.com.au
Climate fatalism is just as wrong as climate denial — it's never 'too late' for change
Veteran environmentalist David Suzuki believes the time has passed us to stop climate change. He's wrong.
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John Mann @jm493.bsky.social · 16/07/2025
I liked this comment. Snips: "actions and decisions made now can make that change greater or lesser" "[The debate] is about PR, social psychology, economics, social movements, politics, and campaign strategies." www.crikey.com.au/2025/07/14/c...
crikey.com.au
Climate fatalism is just as wrong as climate denial — it's never 'too late' for change
Veteran environmentalist David Suzuki believes the time has passed us to stop climate change. He's wrong.
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Renew Economy @reneweconomy.com.au · 11/07/2025
Australia’s uniquely isolated and massive power grid has seen massive renewable energy growth while maintaining world-leading levels of reliability.
reneweconomy.com.au
The lights have stayed on in Australia, even as more wind and solar is added to the grid
Australia’s uniquely isolated and massive power grid has seen massive renewable energy growth while maintaining world-leading levels of reliability.
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Reposted by John Mann
Ketan Joshi @ketanjoshi.co · 09/07/2025
A reminder: this is what's fuelling Elon Musk's racist text generation software over on the white supremacist website that major institutions can't stop using
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John Mann @jm493.bsky.social · 07/07/2025
I knew one small US tech startup where they couldn't get a health plan to cover the company's employees because the Founder and CEO had Crohn's disease (gastric ulcers).
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John Mann @jm493.bsky.social · 04/07/2025
Why we can’t insure our way out of climate crisis www.thenewdaily.com.au/opinion/2025...
thenewdaily.com.au
Wins: Why we can’t insure our way out of the climate crisis
Just as bookmakers won’t take bets on a one-horse race, insurers will never offer insurance against inevitable sea level rise and floods.
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John Mann @jm493.bsky.social · 30/06/2025
That's great. I'm just reporting the impression I got from my GP: "Here's a new patient for you with [recently diagnosed ADHD]. From now on, it's _your_ responsibility to manage them".
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John Mann @jm493.bsky.social · 29/06/2025
My wonderful local bulk-billing GP expressed concern over patients being passed over to them from [ADHD] specialists - proper ongoing management+care requires more than just script writing. Up the Medicare rebates at least!
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John Mann @jm493.bsky.social · 24/06/2025
Would it have been possible to identify and chop bits off to create a smaller isolated subset Spanish grid where generation = demand and frequently+voltage were stable? Or too hard??
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John Mann @jm493.bsky.social · 24/06/2025
What we saw was (simplistically) some things detected a problem, disconnecting themselves -> making the problem worse, and causing *more* things to disconnect! 2/
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John Mann @jm493.bsky.social · 24/06/2025
I'd like to ask the question a different way. Given the first N failures on the Spanish grid, how could it have been brought back under control? What bits should/shouldn't have disconnected (and how/why), which things could/should have ridden-through? 1/
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Reposted by John Mann
Leanne Minshull @leanneminshull.bsky.social · 22/06/2025
Just turned on ABC to get news on the US bombing Iran and they are talking to Scott Morrison? WTF?? Who on earth wants to hear from him? Where can I find decent coverage? #iran
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LouisViljee @louisviljee.bsky.social · 21/06/2025
The US, Europe, Australia, everywhere. The denialism of our governments, captive to the #fossilcriminals. #capturedstate #auspol #wapol
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John Mann @jm493.bsky.social · 20/06/2025
Those screw heads slots look narrow and offset. Perhaps Torq-set ?? Phillips screwdriver won't work.☹️ www.phillips-screw.com/drive_system...
phillips-screw.com
TORQ-SET® - The Phillips Screw Company
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Reposted by John Mann
Ketan Joshi @ketanjoshi.co · 17/06/2025
Israel hasn't stopped gunning down the Palestinians they're starving, as those Palestinians try to feed themselves There is nothing wrong with continuing to say it: these are war crimes, this is genocide, this is murder. It must be stopped, and those perpetrating the crimes must be held accountable
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News releases

Vipps is down
Published at09:44 inVips
Vipps is experiencing problems logging into the app on Tuesday morning. This affects all users and all Vipps MobilePay services, Vipps writes, according to NTB.

Vipps states that they are working to resolve the problem and will provide an update as soon as they have new information.


Read all aboutVips 

DN: John Fredriksen oil tanker involved in collision in the Gulf of Oman
Published at09:43
Reuters reports on Tuesday about a collision in the Gulf of Oman, near the Strait of Hormuz.

John Frederiksen's tanker company confirms to Dagens Næringsliv that one of their ships, "Front Eagle", was involved in the collision.

All crew members are safe. No spills have been reported.

The oil tanker Adalynn was also involved in the collision, the United Arab Emirates Coast Guard confirms, Khaaleej Times and Gulf News report.

24 people were evacuated from the ship, the Coast Guard said.

The incident is not said to be related to the unrest in the area.


45 people reportedly killed while waiting for aid in Gaza
Published at09:23 inThe Israeli-Palestinian conflict
At least 45 Palestinians are reported to have been killed in Khan Younis while waiting for trucks carrying relief supplies. Many are also reported to have been injured.

This is reported by Reuters, citing Palestinian health officials.

Medical personnel told Reuters that witnesses claimed Israeli tanks were firing into the crowd. They expect the death toll to rise as many are critically injured.

Pictures show the dead and wounded being transported to Nasser Hospital, where large, angry crowds have also gathered.

The Israeli military has not yet commented on the incident.

Also on Monday, dozens of Palestinians were reported killed during the distribution of emergency aid.


Read all aboutThe Israeli-Palestinian conflict 

India: Plane forced t…
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John Mann @jm493.bsky.social · 17/06/2025
When the GOP use the term "deficit" they are only talking about the _spending_ side of the budget. Spending ⬇️ == Deficit ⬇️ (in their view) They ignore the _revenue_ side of the balance sheet, and the 100% obvious fact that spending-revenue is going up!!!
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Reposted by John Mann
Scott Hamilton @sdhamiltonvic.bsky.social · 17/06/2025
‘Renewables investment has doubled in 5 years. This needs to double again in the next 5.’ - @iea.org World Energy Report C’mon AUS, let’s keep going #renewables #auspol #G7 www.iea.org/news/global-...
iea.org
Global energy investment set to rise to $3.3 trillion in 2025 amid economic uncertainty and energy security concerns - News - IEA
Global energy investment set to rise to $3.3 trillion in 2025 amid economic uncertainty and energy security concerns - News from the International Energy Agency
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John Mann @jm493.bsky.social · 03/06/2025
www.abc.net.au/news/2024-02...
abc.net.au
Does the 'drug dealer defence' still hold up in climate law cases?
As Queensland environmentalists continue to fight looming coal mine approvals, Australia's Environment Minister Tanya Plibersek is relying on arguments that have come under increasing scrutiny in clim...
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John Mann @jm493.bsky.social · 02/06/2025
You didn't like "unnatural". What word/phrase would you like used?
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John Mann @jm493.bsky.social · 02/06/2025
Do you have an alternative word/phrase? above-natural beyond-natural over-natural super-natural supra-natural boosted natural turbocharged natural ?
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John Mann @jm493.bsky.social · 02/06/2025
> Since 1986, NRC says *we* do, I was asking the questions more around a possible nuclear power industry in Australia. Do we follow US, or UK, EU, KR, JP ... practices??
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John Mann @jm493.bsky.social · 30/05/2025
Australia definitely needs a law like this!
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John Mann @jm493.bsky.social · 27/05/2025
Will we see the "AI Data Centres will eat all the electricity" scare bubbles deflate?
Godzilla crashing through electricity wires between tall pylons
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John Mann @jm493.bsky.social · 27/05/2025
Is "Solar" in this document just solar farms, or does it include behind the meter self-consumption, or off-grid generation?
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John Mann @jm493.bsky.social · 27/05/2025
Originally, it looked like Trump's plan was: Extortion of a) *every* country outside the US (except Russia) b) *every* company inside the US Give me something, and I'll reduce the tariffs I imposed. Now it looks like: If you don't give me what I want soon, I'll hit my head on your fist.
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John Mann @jm493.bsky.social · 26/05/2025
I grew up in Traralgon. If the washing was out on the line and got rained on, Mum would bring in the washing and put it straight back in the washing machine for another go - due to collecting either soot from the power stations, grit from the cement works, or stink from the pulp mill.
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John Mann @jm493.bsky.social · 25/05/2025
... or blame city people, or country people, or immigrants, or the young, or the old, or people with a different colour skin ... The blame literally any "other" group.
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John Mann @jm493.bsky.social · 25/05/2025
As we are seeing in Trump's America, people - when faced by a calamity of their own making - will often blame the other side.
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Reposted by John Mann
Ryan Marino, MD @ryanmarino.bsky.social · 25/05/2025
@clmazin
One of the hallmarks of the dangerously stupid is the consistent belief they've found great solutions that experts somehow missed.
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John Mann @jm493.bsky.social · 24/05/2025
Agree. You had the foresight to sell before having an accident in your car. We need people/councils/Govt to have a change of mindset and recognise that risks have increased, and that they need to move *before* the next more-frequent catastrophe happens.
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John Mann @jm493.bsky.social · 24/05/2025
What we need to start thinking about is Managed Retreat. Move what you can *before* it is damaged. Move in a calm, planned manner, rather than in an post-event expensive rush. Floods Bushfire Sea level rises Drought en.wikipedia.org/wiki/Managed...
en.wikipedia.org
Managed retreat - Wikipedia
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John Mann @jm493.bsky.social · 24/05/2025
One half of the problem is: Who would they sell to? They have just lost most of their assets - damaged possessions, and their home needs major repairs. And they can't raise cash by selling an uninsurable flood-prone house. What do they do - just walk away and start again from nothing?
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