David Spratt
@djspratt.bsky.social
I write about climate. Author “Climate Code Red” book & blog which first articulated the term “climate emergency” climatecodered.org. Focus on climate as threat to human security and the existential risks. Research Director at breakthroughonline.org.au
Pinned
David Spratt
@djspratt.bsky.social
· Dec 3
Climate policy is on a collision course with physical reality - Pearls and Irritations
There is a chasm between global climate policy-making elite and activists and researchers who see the world hurtling towards climate breakdown
johnmenadue.com
#Climate policy is on a collision course with physical reality. My article today on 3 degrees of warming and humanity’s future. johnmenadue.com/climate-poli...
Reposted by David Spratt
@scitalkofficial.bsky.social mit @djspratt.bsky.social über "Klimapolitik" -> Das Problem wird/will nicht verstanden werden. Vergabe neuer Öl- und Gaslizenzen = das Todesurteil für viele Menschen, ergänzt @torstenluetten.bsky.social, und weiters: "Nutzt Solarenergie"
bsky.app/profile/tors...
bsky.app/profile/tors...
Great @scitalkofficial.bsky.social episode with @djspratt.bsky.social on what's wrong with our climate policy makers. David suggests some just don't (want to) get the problem. And I totally agree. Giving away new oil & gas licenses is a death sentence to people.
As an energy expert, I say go solar!
As an energy expert, I say go solar!
#TalkCollapse
👇
"Finally, why do we need high-end possibilities and not mid-range probabilities and should get rid of climate conservative estimates."
👇
"Finally, why do we need high-end possibilities and not mid-range probabilities and should get rid of climate conservative estimates."
November 17, 2025 at 6:38 PM
@scitalkofficial.bsky.social mit @djspratt.bsky.social über "Klimapolitik" -> Das Problem wird/will nicht verstanden werden. Vergabe neuer Öl- und Gaslizenzen = das Todesurteil für viele Menschen, ergänzt @torstenluetten.bsky.social, und weiters: "Nutzt Solarenergie"
bsky.app/profile/tors...
bsky.app/profile/tors...
#COP30 is just gonna work out great: "Any final deal will mean somehow finding a consensus that can be tolerated by both the world’s biggest fossil fuel producers and the small island states on the frontlines of sea level rise." #climate www.bloomberg.com/news/newslet...
The Four Biggest Issues to Track at Climate Talks
Welcome to COP30, officially. After the two-day leaders summit last week, the Conference of Parties starts today and will go on until at least Nov. 21.
www.bloomberg.com
November 10, 2025 at 10:16 AM
#COP30 is just gonna work out great: "Any final deal will mean somehow finding a consensus that can be tolerated by both the world’s biggest fossil fuel producers and the small island states on the frontlines of sea level rise." #climate www.bloomberg.com/news/newslet...
Science Talk podcast: My take on The Worst Outcome of Systematic Collapse, Cascading #Climate Tipping Points, and thebClimate Emergency. www.youtube.com/watch?v=SWVZ... and a big thanks to Muhammad Ittefaq for a no-holds-barred conversation.
The Worst Outcome of Systematic Collapse I Cascading Climate Tipping Points I Climate Emergency
YouTube video by Science Talk
www.youtube.com
November 2, 2025 at 9:49 PM
Science Talk podcast: My take on The Worst Outcome of Systematic Collapse, Cascading #Climate Tipping Points, and thebClimate Emergency. www.youtube.com/watch?v=SWVZ... and a big thanks to Muhammad Ittefaq for a no-holds-barred conversation.
Reposted by David Spratt
Today, at 1.5 and 430 parts. Per million 302, climate change is already dangerous. That is, 1.5 is a political goal, not a moral goal.
@djspratt.bsky.social
@djspratt.bsky.social
October 15, 2025 at 2:34 PM
Today, at 1.5 and 430 parts. Per million 302, climate change is already dangerous. That is, 1.5 is a political goal, not a moral goal.
@djspratt.bsky.social
@djspratt.bsky.social
A big thanks to Arjana and Kathy from MEER podcasts for this discussion on #climate risk realism and the case for cooling to a livable planet youtu.be/bTQ-xjgtA5E?...
8. Risk Realism: Cooling a Livable Planet w/ David Spratt
YouTube video by MEER SRM
youtu.be
September 21, 2025 at 2:42 AM
A big thanks to Arjana and Kathy from MEER podcasts for this discussion on #climate risk realism and the case for cooling to a livable planet youtu.be/bTQ-xjgtA5E?...
Will Australia's new National Climate Risk Assessment – more omission than commission? johnmenadue.com/post/2025/08... Will it describe full spectrum of climate risks Australians will face, or be marred by a poor approach to risk analysis, bureaucratic incompetence and a limited vision?
New National Climate Risk Assessment – more omission than commission?
The Albanese Government will soon deliver Australia’s first domestically-oriented National Climate Risk Assessment, which was due in December 2024.
johnmenadue.com
August 2, 2025 at 1:07 AM
Will Australia's new National Climate Risk Assessment – more omission than commission? johnmenadue.com/post/2025/08... Will it describe full spectrum of climate risks Australians will face, or be marred by a poor approach to risk analysis, bureaucratic incompetence and a limited vision?
#Climate warming has reached 1.5°C. What does that mean for climate activists? These are the hard questions policymakers and advocates are avoiding: www.climatecodered.org/2025/07/the-... And what would it really take to restore a safe climate?
https://climatecodered.org/2025/07/the-15…
July 31, 2025 at 1:43 AM
#Climate warming has reached 1.5°C. What does that mean for climate activists? These are the hard questions policymakers and advocates are avoiding: www.climatecodered.org/2025/07/the-... And what would it really take to restore a safe climate?
Reposted by David Spratt
"How was 2°C ever considered a reasonable goal? Answering that question — it wasn’t science-based, but first proposed by an economist — may provide insight into why 1.5°C isn’t either."
Safety = < 350 ppm and < 1°C.
www.climatecodered.org/2025/07/the-..., by @djspratt.bsky.social.
Safety = < 350 ppm and < 1°C.
www.climatecodered.org/2025/07/the-..., by @djspratt.bsky.social.
The 1.5 degrees climate advocacy conundrum
The climate emergency requires actions at emergency speed for a rapid transition to a post-carbon, safe-climate future.
www.climatecodered.org
July 29, 2025 at 8:55 AM
"How was 2°C ever considered a reasonable goal? Answering that question — it wasn’t science-based, but first proposed by an economist — may provide insight into why 1.5°C isn’t either."
Safety = < 350 ppm and < 1°C.
www.climatecodered.org/2025/07/the-..., by @djspratt.bsky.social.
Safety = < 350 ppm and < 1°C.
www.climatecodered.org/2025/07/the-..., by @djspratt.bsky.social.
Reposted by David Spratt
#Spratt.4.7 @djspratt.bsky.social
We have just lost 15 years.
1.5°C is here 15 years faster than policy makers thought it would be.
The IPCC risk analysis, the mitigation, the emergency management you know policy is
based on 1.5°C in 2040.
www.youtube.com/watch?v=J7zh...
We have just lost 15 years.
1.5°C is here 15 years faster than policy makers thought it would be.
The IPCC risk analysis, the mitigation, the emergency management you know policy is
based on 1.5°C in 2040.
www.youtube.com/watch?v=J7zh...
July 29, 2025 at 4:26 PM
#Spratt.4.7 @djspratt.bsky.social
We have just lost 15 years.
1.5°C is here 15 years faster than policy makers thought it would be.
The IPCC risk analysis, the mitigation, the emergency management you know policy is
based on 1.5°C in 2040.
www.youtube.com/watch?v=J7zh...
We have just lost 15 years.
1.5°C is here 15 years faster than policy makers thought it would be.
The IPCC risk analysis, the mitigation, the emergency management you know policy is
based on 1.5°C in 2040.
www.youtube.com/watch?v=J7zh...
Reposted by David Spratt
#Spratt.4.10 @djspratt.bsky.social
From a risk management the worst case is relevant (plane crash..)
Policy makers, science, IPCC, doesn't look at the worst case scenarios.
Policy IPCC look at the middle range only.
www.youtube.com/watch?v=J7zh...
From a risk management the worst case is relevant (plane crash..)
Policy makers, science, IPCC, doesn't look at the worst case scenarios.
Policy IPCC look at the middle range only.
www.youtube.com/watch?v=J7zh...
July 29, 2025 at 4:35 PM
#Spratt.4.10 @djspratt.bsky.social
From a risk management the worst case is relevant (plane crash..)
Policy makers, science, IPCC, doesn't look at the worst case scenarios.
Policy IPCC look at the middle range only.
www.youtube.com/watch?v=J7zh...
From a risk management the worst case is relevant (plane crash..)
Policy makers, science, IPCC, doesn't look at the worst case scenarios.
Policy IPCC look at the middle range only.
www.youtube.com/watch?v=J7zh...
Reposted by David Spratt
WE WERE "ALL HANDS ON DECK" OVER 10 YEARS AGO @djspratt.bsky.social.
WE'RE SO FUCKED @davemilbo.bsky.social.
www.motherjones.com/politics/201...
SO, SO, FUCKED @allouryesterdays.bsky.social *sighs*
#climatecrisis #climate #SundayShot
WE'RE SO FUCKED @davemilbo.bsky.social.
www.motherjones.com/politics/201...
SO, SO, FUCKED @allouryesterdays.bsky.social *sighs*
#climatecrisis #climate #SundayShot
June 25, 2025 at 11:32 AM
WE WERE "ALL HANDS ON DECK" OVER 10 YEARS AGO @djspratt.bsky.social.
WE'RE SO FUCKED @davemilbo.bsky.social.
www.motherjones.com/politics/201...
SO, SO, FUCKED @allouryesterdays.bsky.social *sighs*
#climatecrisis #climate #SundayShot
WE'RE SO FUCKED @davemilbo.bsky.social.
www.motherjones.com/politics/201...
SO, SO, FUCKED @allouryesterdays.bsky.social *sighs*
#climatecrisis #climate #SundayShot
How bad can #climate damage get? Worse than you imagine. There is reason to worry that the physical reality of accelerating climate disruption will mug Australia's risk assessment and leave us poorly prepared. www.climatecodered.org/2025/06/how-...
How bad can climate damage get? Worse than you imagine
The climate emergency requires actions at emergency speed for a rapid transition to a post-carbon, safe-climate future.
www.climatecodered.org
June 24, 2025 at 6:07 AM
How bad can #climate damage get? Worse than you imagine. There is reason to worry that the physical reality of accelerating climate disruption will mug Australia's risk assessment and leave us poorly prepared. www.climatecodered.org/2025/06/how-...
Reposted by David Spratt
"This is a field in which knowledge is relatively new and growing quickly ... uncertainty can become an excuse for political delay; and the cost of not understanding the systemic risks may be the viability of major Earth systems and human societies."
@djspratt.bsky.social
#ClimateCrisis
@djspratt.bsky.social
#ClimateCrisis
Is scientific reticence hindering climate understanding?
The bulk of climate research has tended to underplay worst-case scenarios, preferring cautious projections and scholarly reticence. This reticence is clearly displayed in the work of the IPCC, which c...
thebulletin.org
April 22, 2025 at 5:04 AM
"This is a field in which knowledge is relatively new and growing quickly ... uncertainty can become an excuse for political delay; and the cost of not understanding the systemic risks may be the viability of major Earth systems and human societies."
@djspratt.bsky.social
#ClimateCrisis
@djspratt.bsky.social
#ClimateCrisis
Reposted by David Spratt
Deserves to be widely read - not least by those of us engaging with IPCC AR7, just starting with the Special Report in Climate Change and Cities
My article on #climate research and scientific reticence in the Bulletin of the Atomic Scientists is available for free until the close of business on April 23, out from behind the Bulletin paywall, and can be accessed at:
thebulletin.org/premium/2025...
thebulletin.org/premium/2025...
Is scientific reticence hindering climate understanding?
The bulk of climate research has tended to underplay worst-case scenarios, preferring cautious projections and scholarly reticence. This reticence is clearly displayed in the work of the IPCC, which c...
thebulletin.org
April 18, 2025 at 6:18 PM
Deserves to be widely read - not least by those of us engaging with IPCC AR7, just starting with the Special Report in Climate Change and Cities
My article on #climate research and scientific reticence in the Bulletin of the Atomic Scientists is available for free until the close of business on April 23, out from behind the Bulletin paywall, and can be accessed at:
thebulletin.org/premium/2025...
thebulletin.org/premium/2025...
Is scientific reticence hindering climate understanding?
The bulk of climate research has tended to underplay worst-case scenarios, preferring cautious projections and scholarly reticence. This reticence is clearly displayed in the work of the IPCC, which c...
thebulletin.org
April 18, 2025 at 12:57 AM
My article on #climate research and scientific reticence in the Bulletin of the Atomic Scientists is available for free until the close of business on April 23, out from behind the Bulletin paywall, and can be accessed at:
thebulletin.org/premium/2025...
thebulletin.org/premium/2025...
Reposted by David Spratt
But @djspratt.bsky.social's critique gets at how scientists themselves might be underestimating risks. There are multiple reasons for this, he explains: methodological, political, and social.
April 17, 2025 at 4:25 PM
But @djspratt.bsky.social's critique gets at how scientists themselves might be underestimating risks. There are multiple reasons for this, he explains: methodological, political, and social.
Reposted by David Spratt
7 yrs ago the IPCC estimated the world would pass 1.5C between 2030-2052
The problem? We're already there.
Another fantastic article from the tipping points issue out from behind the paywall: @djspratt.bsky.social on the underestimation of climate threats at the intersection of science & policy
The problem? We're already there.
Another fantastic article from the tipping points issue out from behind the paywall: @djspratt.bsky.social on the underestimation of climate threats at the intersection of science & policy
Next, @djspratt.bsky.social on the "scientific reticence" that could result in understudying and underestimating the impacts of climate tipping points thebulletin.org/premium/2025...
April 17, 2025 at 4:16 PM
7 yrs ago the IPCC estimated the world would pass 1.5C between 2030-2052
The problem? We're already there.
Another fantastic article from the tipping points issue out from behind the paywall: @djspratt.bsky.social on the underestimation of climate threats at the intersection of science & policy
The problem? We're already there.
Another fantastic article from the tipping points issue out from behind the paywall: @djspratt.bsky.social on the underestimation of climate threats at the intersection of science & policy
Reposted by David Spratt
Federal Labor Government playing politics with 'frankly terrifying' national climate Security Risks argues @djspratt.bsky.social
We need the Office of National Intelligence report declassified, made public.
#ClimateSecurity #Australia #ClimateCrisis
johnmenadue.com/government-r...
We need the Office of National Intelligence report declassified, made public.
#ClimateSecurity #Australia #ClimateCrisis
johnmenadue.com/government-r...
Government refuses to articulate 'frankly terrifying' security risks - Pearls and Irritations
The Albanese Government has jammed itself not talking about the greatest threat to Australia’s future, playing politics with security issues.
johnmenadue.com
March 18, 2025 at 5:04 AM
Federal Labor Government playing politics with 'frankly terrifying' national climate Security Risks argues @djspratt.bsky.social
We need the Office of National Intelligence report declassified, made public.
#ClimateSecurity #Australia #ClimateCrisis
johnmenadue.com/government-r...
We need the Office of National Intelligence report declassified, made public.
#ClimateSecurity #Australia #ClimateCrisis
johnmenadue.com/government-r...
Australian government refuses to articulate "frankly terrifying" #climate security risks - johnmenadue.com/government-r.... Government opens itself to charge of playing politics with security issues by selectively briefing an intelligence report it has classified.
johnmenadue.com
March 18, 2025 at 2:47 AM
Australian government refuses to articulate "frankly terrifying" #climate security risks - johnmenadue.com/government-r.... Government opens itself to charge of playing politics with security issues by selectively briefing an intelligence report it has classified.
Reposted by David Spratt
Next, @djspratt.bsky.social on the "scientific reticence" that could result in understudying and underestimating the impacts of climate tipping points thebulletin.org/premium/2025...
March 12, 2025 at 6:31 PM
Next, @djspratt.bsky.social on the "scientific reticence" that could result in understudying and underestimating the impacts of climate tipping points thebulletin.org/premium/2025...
SBS: Australian nuclear reactors could become a target of war if the federal coalition was to go ahead with plans to build them, a group of former defence leaders warn. www.sbs.com.au/news/article...
Nuclear reactors could become targets of war, defence experts warn
The Australian Security Leaders Climate Group has warned the Coalition's nuclear plans could leave Australia vulnerable to devastating attacks.
www.sbs.com.au
February 27, 2025 at 9:10 PM
SBS: Australian nuclear reactors could become a target of war if the federal coalition was to go ahead with plans to build them, a group of former defence leaders warn. www.sbs.com.au/news/article...
Reposted by David Spratt
Must watch: Climate change and Australian security: a conversation with Admiral Chris Barrie. A Town Hall conversation with Independent @mon4kooyong.bsky.social, Climate analyst @djspratt.bsky.social and Admiral Chris Barrie. #climatesecurity #climatecrisis www.youtube.com/watch?v=9iVS...
Climate change and Australian security: a conversation with Admiral Chris Barrie
YouTube video by Dr Monique Ryan MP
www.youtube.com
February 25, 2025 at 9:08 AM
Must watch: Climate change and Australian security: a conversation with Admiral Chris Barrie. A Town Hall conversation with Independent @mon4kooyong.bsky.social, Climate analyst @djspratt.bsky.social and Admiral Chris Barrie. #climatesecurity #climatecrisis www.youtube.com/watch?v=9iVS...
#Climate shock and awe. The prime minister's climate speech we've been waiting for. Next Tuesday at 7pm. sustainabilityfestival.au/event/the-pm...
February 22, 2025 at 1:07 AM
#Climate shock and awe. The prime minister's climate speech we've been waiting for. Next Tuesday at 7pm. sustainabilityfestival.au/event/the-pm...
Reposted by David Spratt
It shows in insurance. Uninsurable properties don’t get a mortgage!
All people in power accept, knew & know about the harm of #ClimateBreakdown. Even if they are silent or deny! #TheyKnew
Thankyou SLF, @djspratt.bsky.social @mon4kooyong.bsky.social ADML C Barrie
www.youtube.com/watch?v=KXNx...
All people in power accept, knew & know about the harm of #ClimateBreakdown. Even if they are silent or deny! #TheyKnew
Thankyou SLF, @djspratt.bsky.social @mon4kooyong.bsky.social ADML C Barrie
www.youtube.com/watch?v=KXNx...
February 20, 2025 at 5:23 AM
It shows in insurance. Uninsurable properties don’t get a mortgage!
All people in power accept, knew & know about the harm of #ClimateBreakdown. Even if they are silent or deny! #TheyKnew
Thankyou SLF, @djspratt.bsky.social @mon4kooyong.bsky.social ADML C Barrie
www.youtube.com/watch?v=KXNx...
All people in power accept, knew & know about the harm of #ClimateBreakdown. Even if they are silent or deny! #TheyKnew
Thankyou SLF, @djspratt.bsky.social @mon4kooyong.bsky.social ADML C Barrie
www.youtube.com/watch?v=KXNx...
Reposted by David Spratt
Event recording: www.youtube.com/watch?v=flgq...
February 19, 2025 at 10:51 AM
Event recording: www.youtube.com/watch?v=flgq...