John Mann
@jm493.bsky.social
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
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
Pinned
John Mann
@jm493.bsky.social
· Feb 4
> run existing coal rather than introduce 24% worse gas
Continuously running coal emits more CO2 than from occasional use of gas as backup.
Continuously running coal emits more CO2 than from occasional use of gas as backup.
Reposted by John Mann
Sussan Ley: New arrivals should have "Australian values"
Liberal and National party "Australian values" detailed for you by The Juice Media in 2021. 👇🏻
🚨 Content warning: references to sexual assault. #auspol
youtu.be/AqNdKtahx58
Liberal and National party "Australian values" detailed for you by The Juice Media in 2021. 👇🏻
🚨 Content warning: references to sexual assault. #auspol
youtu.be/AqNdKtahx58
Honest Government Ad | Australien Values
YouTube video by thejuicemedia
youtu.be
November 20, 2025 at 1:33 AM
Sussan Ley: New arrivals should have "Australian values"
Liberal and National party "Australian values" detailed for you by The Juice Media in 2021. 👇🏻
🚨 Content warning: references to sexual assault. #auspol
youtu.be/AqNdKtahx58
Liberal and National party "Australian values" detailed for you by The Juice Media in 2021. 👇🏻
🚨 Content warning: references to sexual assault. #auspol
youtu.be/AqNdKtahx58
Reposted by John Mann
The hallmarks of authoritarianism are on full display in the US right now. Recognizing them—and sharing this knowledge with others—is step one for any successful effort to counter what’s happening.
What Authoritarian Regimes Do
As we speak, the Trump administration is abandoning principles of democracy and dismantling the rule of law. The willful destruction of the federal science apparatus is but one harmful and onerous asp...
blog.ucs.org
October 31, 2025 at 1:51 AM
Reposted by John Mann
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! -->>>
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! -->>>
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...
www.annualreviews.org
October 7, 2025 at 11:31 AM
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! -->>>
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! -->>>
Reposted by John Mann
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.
Costs are falling much slower than anticipated, casting doubts on the nascent technique’s role in tackling climate change.
September 28, 2025 at 8:10 AM
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.
Costs are falling much slower than anticipated, casting doubts on the nascent technique’s role in tackling climate change.
Reposted by John Mann
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...
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...
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...
www.abc.net.au
September 3, 2025 at 10:27 PM
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...
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...
Reposted by John Mann
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.
August 19, 2025 at 7:35 PM
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.
Reposted by John Mann
When you strip away humanity
July 26, 2025 at 11:31 AM
When you strip away humanity
Reposted by John Mann
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
Here is the history of electrification in six moments and today’s defining 🧵
1/10
July 26, 2025 at 11:00 AM
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
Here is the history of electrification in six moments and today’s defining 🧵
1/10
Reposted by John Mann
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
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
The Federal Government has released a new report that includes projections of how much gas Australia is set to use over the coming decades.
There is no ambiguity in its message: Australia reached peak gas years ago, and it’s all downhill from here.
@ketanjoshi.co #auspol
There is no ambiguity in its message: Australia reached peak gas years ago, and it’s all downhill from here.
@ketanjoshi.co #auspol
July 25, 2025 at 11:30 PM
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
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
Reposted by John Mann
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.
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.
Cost estimate for UK's next nuclear power plant to be increased by 90%, already before start of its main construction phase. Now to €44 billion, that's €13,700 per kW, hardly lower than Hinkley Point C.
when the FT revealed in January that the cost of building the Sizewell C nuclear plant had risen to around £40bn they all denied it
now we can reveal the actual price tag - to be announced this week - and it is £38bn
www.ft.com/content/d431...
now we can reveal the actual price tag - to be announced this week - and it is £38bn
www.ft.com/content/d431...
July 20, 2025 at 8:45 AM
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.
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.
Reposted by John Mann
Well-said, @ketanjoshi.co.
Fatalism supports apathy and leads to deeper failure. I’ll pass, David.
www.crikey.com.au/2025/07/14/c...
Fatalism supports apathy and leads to deeper failure. I’ll pass, David.
www.crikey.com.au/2025/07/14/c...
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.
www.crikey.com.au
July 16, 2025 at 6:31 AM
Well-said, @ketanjoshi.co.
Fatalism supports apathy and leads to deeper failure. I’ll pass, David.
www.crikey.com.au/2025/07/14/c...
Fatalism supports apathy and leads to deeper failure. I’ll pass, David.
www.crikey.com.au/2025/07/14/c...
Reposted by John Mann
Australia’s uniquely isolated and massive power grid has seen massive renewable energy growth while maintaining world-leading levels of reliability.
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.
reneweconomy.com.au
July 11, 2025 at 6:23 AM
Australia’s uniquely isolated and massive power grid has seen massive renewable energy growth while maintaining world-leading levels of reliability.
Reposted by John Mann
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
Incredible satellite image of the 33 (!!!!) operational fossil fuel combustion engines at the site of Elon Musk's XAI data centre
“appalling that xAI would operate more than 30 methane gas turbines without any permits or any public oversight"
@selc.bsky.social
www.theguardian.com/technology/2...
“appalling that xAI would operate more than 30 methane gas turbines without any permits or any public oversight"
@selc.bsky.social
www.theguardian.com/technology/2...
July 9, 2025 at 5:12 AM
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
Reposted by John Mann
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
June 22, 2025 at 2:24 AM
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
Reposted by John Mann
The US, Europe, Australia, everywhere. The denialism of our governments, captive to the #fossilcriminals.
#capturedstate
#auspol
#wapol
#capturedstate
#auspol
#wapol
turns out climate change will cost dramatically more than economists predicted, and the cost of addressing it is actually negative. oops! prospect.org/environment/...
Climate Change Will Bankrupt the Country
Climate-fueled disasters cost America almost a trillion dollars over the last year, far more than economists predicted.
prospect.org
June 21, 2025 at 6:59 PM
The US, Europe, Australia, everywhere. The denialism of our governments, captive to the #fossilcriminals.
#capturedstate
#auspol
#wapol
#capturedstate
#auspol
#wapol
Reposted by John Mann
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
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
June 17, 2025 at 7:59 AM
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
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
Reposted by John Mann
‘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-...
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-...
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
www.iea.org
June 17, 2025 at 5:40 AM
‘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-...
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-...
Australia definitely needs a law like this!
This is such good news.
mgcp03.engage.squarespace-mail.com
@stopecocide.bsky.social @choirs4ecocidelaw.bsky.social
#EcocideLaw
mgcp03.engage.squarespace-mail.com
@stopecocide.bsky.social @choirs4ecocidelaw.bsky.social
#EcocideLaw
Scotland Introduces Landmark Ecocide Bill — Stop Ecocide International
Scotland is poised to become the first UK nation to criminalise ecocide - severe and reckless harm to nature - under a new Member’s Bill published in Holyrood today. The Ecocide (Scotland) Bill...
mgcp03.engage.squarespace-mail.com
May 30, 2025 at 8:47 PM
Australia definitely needs a law like this!
Reposted by John Mann
Reposted by John Mann
The implosion of the opposition hands the Albanese government a once-in-a-hundred year opportunity to go hard on climate and renewables
Coalition’s nuclear split leaves Labor with zero excuses on climate and renewables
The implosion of the opposition hands the Albanese government a once-in-a-hundred year opportunity to go hard on climate and renewables.
reneweconomy.com.au
May 21, 2025 at 11:58 PM
The implosion of the opposition hands the Albanese government a once-in-a-hundred year opportunity to go hard on climate and renewables
Reposted by John Mann
look at this freaking chart. The orange is the gap between claimed emissions (blue) and real-world emissions.
Fossil-fuelled cars that carry around a battery are not low emissions. Sort of blows my mind that this isn't a bigger scandal
www.transportenvironment.org/te-united-ki...
Fossil-fuelled cars that carry around a battery are not low emissions. Sort of blows my mind that this isn't a bigger scandal
www.transportenvironment.org/te-united-ki...
May 19, 2025 at 11:28 AM
look at this freaking chart. The orange is the gap between claimed emissions (blue) and real-world emissions.
Fossil-fuelled cars that carry around a battery are not low emissions. Sort of blows my mind that this isn't a bigger scandal
www.transportenvironment.org/te-united-ki...
Fossil-fuelled cars that carry around a battery are not low emissions. Sort of blows my mind that this isn't a bigger scandal
www.transportenvironment.org/te-united-ki...
Reposted by John Mann
Dutton didn't appeal to the country’s worst impulses:
"he attempted to create them. He invented new fears and passed them off as the public’s. He intimated that this was a sombre duty but in fact it was an ugly pleasure"
@thesaturdaypaper.com.au #auspol
www.thesaturdaypaper.com.au/comment/edit...
"he attempted to create them. He invented new fears and passed them off as the public’s. He intimated that this was a sombre duty but in fact it was an ugly pleasure"
@thesaturdaypaper.com.au #auspol
www.thesaturdaypaper.com.au/comment/edit...
Stop the votes
Surely this is the end, the rock bottom drunks talk about at their first meeting. For more than 20 years, the Liberal Party has staggered further and further from the political centre, stopping occasi...
www.thesaturdaypaper.com.au
May 9, 2025 at 8:32 PM
Dutton didn't appeal to the country’s worst impulses:
"he attempted to create them. He invented new fears and passed them off as the public’s. He intimated that this was a sombre duty but in fact it was an ugly pleasure"
@thesaturdaypaper.com.au #auspol
www.thesaturdaypaper.com.au/comment/edit...
"he attempted to create them. He invented new fears and passed them off as the public’s. He intimated that this was a sombre duty but in fact it was an ugly pleasure"
@thesaturdaypaper.com.au #auspol
www.thesaturdaypaper.com.au/comment/edit...