Dr. Aaron Thierry
@thierryaaron.bsky.social
Graduate student at Cardiff University - researching the role of science and scientists in the climate movement. PhD in Ecology. Activism. Climate communications.
Pinned
My first comment piece in @theguardian.com is on a topic very close to my heart; the threat that the #ClimateCrisis poses to my local community in South Wales.
Here's a thread with a few extra thoughts from me 🧵
Here's a thread with a few extra thoughts from me 🧵
Reposted by Dr. Aaron Thierry
What better way to end 2025 than getting our paper published in Global Environmental Change 🥳💚
We studied perceptions of the feasibility of climate-relevant behavior change and how these perceptions connect to income differences and climate policy support.
Let me tell you all about it🧵👇
We studied perceptions of the feasibility of climate-relevant behavior change and how these perceptions connect to income differences and climate policy support.
Let me tell you all about it🧵👇
December 28, 2025 at 3:55 PM
What better way to end 2025 than getting our paper published in Global Environmental Change 🥳💚
We studied perceptions of the feasibility of climate-relevant behavior change and how these perceptions connect to income differences and climate policy support.
Let me tell you all about it🧵👇
We studied perceptions of the feasibility of climate-relevant behavior change and how these perceptions connect to income differences and climate policy support.
Let me tell you all about it🧵👇
Reposted by Dr. Aaron Thierry
We continue to be heartened by the influx of new donors, subscribers, & followers. With your support, we are able to carry out our mission of protecting & defending researchers from legal attacks, harassment, censorship, & more. We can't do this without you. csldf.org/donate
Activism & Advocacy - Climate Science Legal Defense Fund
ACTIVISM & ADVOCACY TOOLKIT Our free legal resources help scientists understand how they can safely speak out for science. Scientists’…
csldf.org
December 19, 2025 at 1:10 PM
We continue to be heartened by the influx of new donors, subscribers, & followers. With your support, we are able to carry out our mission of protecting & defending researchers from legal attacks, harassment, censorship, & more. We can't do this without you. csldf.org/donate
Reposted by Dr. Aaron Thierry
".. the Corporate Mapping Project compiled a public database of the 1656 organizations and 44,433 people who make up what we shall now refer to as the Climate Change Counter Movement within Canada."
#Canada
#ClimateDenial
#ClimateDelay
www.sciencedirect.com/science/arti...
#Canada
#ClimateDenial
#ClimateDelay
www.sciencedirect.com/science/arti...
Countering the Climate Change Counter Movement: Six lessons from Canada's climate delays
The global transition away from fossil fuels is dangerously delayed. While climate delays are a complex issue, the fossil-fuel funded Climate Change C…
www.sciencedirect.com
December 29, 2025 at 11:05 PM
".. the Corporate Mapping Project compiled a public database of the 1656 organizations and 44,433 people who make up what we shall now refer to as the Climate Change Counter Movement within Canada."
#Canada
#ClimateDenial
#ClimateDelay
www.sciencedirect.com/science/arti...
#Canada
#ClimateDenial
#ClimateDelay
www.sciencedirect.com/science/arti...
Reposted by Dr. Aaron Thierry
9️⃣ Energy transition expert @tessakhan.bsky.social explains how UK dependence on foreign dictators for gas and oil has pushed over 12 million households into energy poverty—and why upgrading to homegrown renewables will make us so much better off.
More info: www.nebriefing.org/take-action
#NEB2025
More info: www.nebriefing.org/take-action
#NEB2025
December 23, 2025 at 12:39 PM
9️⃣ Energy transition expert @tessakhan.bsky.social explains how UK dependence on foreign dictators for gas and oil has pushed over 12 million households into energy poverty—and why upgrading to homegrown renewables will make us so much better off.
More info: www.nebriefing.org/take-action
#NEB2025
More info: www.nebriefing.org/take-action
#NEB2025
Reposted by Dr. Aaron Thierry
8️⃣ Green policy expert @angelaisfranc.bsky.social on why the Government urgently needs to rewrite the rules, which currently favour polluters, and deliver the enormous benefits that a transition to a post-fossil-fuel economy will bring.
How you can help: www.nebriefing.org/take-action
#NEB2025
How you can help: www.nebriefing.org/take-action
#NEB2025
December 23, 2025 at 12:39 PM
8️⃣ Green policy expert @angelaisfranc.bsky.social on why the Government urgently needs to rewrite the rules, which currently favour polluters, and deliver the enormous benefits that a transition to a post-fossil-fuel economy will bring.
How you can help: www.nebriefing.org/take-action
#NEB2025
How you can help: www.nebriefing.org/take-action
#NEB2025
Reposted by Dr. Aaron Thierry
7️⃣ Lt General Richard Nugee CB CVO CBE with a stark warning all MPs must hear:
"We are facing the potential of 𝗮𝗻 𝘂𝗻𝗴𝗼𝘃𝗲𝗿𝗻𝗮𝗯𝗹𝗲 𝘀𝘁𝗮𝘁𝗲 unless Government takes this seriously"
Gen Nugee also explains how acting now will make our nation so much more resilient.
More info: www.nebriefing.org/take-action
"We are facing the potential of 𝗮𝗻 𝘂𝗻𝗴𝗼𝘃𝗲𝗿𝗻𝗮𝗯𝗹𝗲 𝘀𝘁𝗮𝘁𝗲 unless Government takes this seriously"
Gen Nugee also explains how acting now will make our nation so much more resilient.
More info: www.nebriefing.org/take-action
December 23, 2025 at 12:39 PM
7️⃣ Lt General Richard Nugee CB CVO CBE with a stark warning all MPs must hear:
"We are facing the potential of 𝗮𝗻 𝘂𝗻𝗴𝗼𝘃𝗲𝗿𝗻𝗮𝗯𝗹𝗲 𝘀𝘁𝗮𝘁𝗲 unless Government takes this seriously"
Gen Nugee also explains how acting now will make our nation so much more resilient.
More info: www.nebriefing.org/take-action
"We are facing the potential of 𝗮𝗻 𝘂𝗻𝗴𝗼𝘃𝗲𝗿𝗻𝗮𝗯𝗹𝗲 𝘀𝘁𝗮𝘁𝗲 unless Government takes this seriously"
Gen Nugee also explains how acting now will make our nation so much more resilient.
More info: www.nebriefing.org/take-action
Reposted by Dr. Aaron Thierry
6️⃣ Leading intensive care doctor Professor @hughmontgomery.bsky.social OBE:
"The climate emergency IS a health emergency"
Prof Montgomery also outlines the enormous benefits if we take bold action.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
"The climate emergency IS a health emergency"
Prof Montgomery also outlines the enormous benefits if we take bold action.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
December 23, 2025 at 12:39 PM
6️⃣ Leading intensive care doctor Professor @hughmontgomery.bsky.social OBE:
"The climate emergency IS a health emergency"
Prof Montgomery also outlines the enormous benefits if we take bold action.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
"The climate emergency IS a health emergency"
Prof Montgomery also outlines the enormous benefits if we take bold action.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
Reposted by Dr. Aaron Thierry
5️⃣ @profpaulbehrens.bsky.social of @ox.ac.uk with a vital message for MPs & the public.
"If we don't lead this change on the front foot, we'll be forced into it anyway as food shocks intensify."
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
"If we don't lead this change on the front foot, we'll be forced into it anyway as food shocks intensify."
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
December 23, 2025 at 12:39 PM
5️⃣ @profpaulbehrens.bsky.social of @ox.ac.uk with a vital message for MPs & the public.
"If we don't lead this change on the front foot, we'll be forced into it anyway as food shocks intensify."
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
"If we don't lead this change on the front foot, we'll be forced into it anyway as food shocks intensify."
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
Reposted by Dr. Aaron Thierry
4️⃣ Professor Tim Lenton OBE of @exeter.ac.uk warns that if we cause the #AMOC ocean current to collapse, which could happen at 2°C, we could see winter temperatures of -20°C in London and -30°C in Aberdeen.
More info: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
More info: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
December 23, 2025 at 12:39 PM
4️⃣ Professor Tim Lenton OBE of @exeter.ac.uk warns that if we cause the #AMOC ocean current to collapse, which could happen at 2°C, we could see winter temperatures of -20°C in London and -30°C in Aberdeen.
More info: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
More info: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
Reposted by Dr. Aaron Thierry
3️⃣ Professor @hayleyjfowler.bsky.social of @newcastleuni.bsky.social warning that the mega floods seen in Europe could happen here, and that we're not prepared.
We need emergency action more than ever.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
We need emergency action more than ever.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
December 23, 2025 at 12:39 PM
3️⃣ Professor @hayleyjfowler.bsky.social of @newcastleuni.bsky.social warning that the mega floods seen in Europe could happen here, and that we're not prepared.
We need emergency action more than ever.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
We need emergency action more than ever.
What you can do: www.nebriefing.org/take-action
Full talks: www.youtube.com/@nebriefing
#NEB2025
Reposted by Dr. Aaron Thierry
2️⃣ Professor @kevinclimate.bsky.social: we're using up the carbon budget for staying under 2°C at 0.7% every single month, with a small but very real risk we could reach a catastrophic 4°C by 2100.
There are huge benefits for the majority if we address climate change.
www.nebriefing.org/take-action
There are huge benefits for the majority if we address climate change.
www.nebriefing.org/take-action
December 23, 2025 at 12:39 PM
2️⃣ Professor @kevinclimate.bsky.social: we're using up the carbon budget for staying under 2°C at 0.7% every single month, with a small but very real risk we could reach a catastrophic 4°C by 2100.
There are huge benefits for the majority if we address climate change.
www.nebriefing.org/take-action
There are huge benefits for the majority if we address climate change.
www.nebriefing.org/take-action
Reposted by Dr. Aaron Thierry
1️⃣ Professor Nathalie Seddon of @ox.ac.uk explains why nature is critical infrastructure.
"This is national security issue. Without a living, healthy biosphere, there is no stable economy, no food..."
Yet taking action will make us better off.
More info: www.nebriefing.org/take-action
#NEB2025
"This is national security issue. Without a living, healthy biosphere, there is no stable economy, no food..."
Yet taking action will make us better off.
More info: www.nebriefing.org/take-action
#NEB2025
December 23, 2025 at 12:39 PM
1️⃣ Professor Nathalie Seddon of @ox.ac.uk explains why nature is critical infrastructure.
"This is national security issue. Without a living, healthy biosphere, there is no stable economy, no food..."
Yet taking action will make us better off.
More info: www.nebriefing.org/take-action
#NEB2025
"This is national security issue. Without a living, healthy biosphere, there is no stable economy, no food..."
Yet taking action will make us better off.
More info: www.nebriefing.org/take-action
#NEB2025
Reposted by Dr. Aaron Thierry
Battery pack storage costs for WindWaterSolar are dropping so low that they eliminate the argument for using fossil fuels or nuclear moving forward.
Battery pack prices for stationary storage now down to $70/kWh in 2025, a 45% decrease in just one year.
www.ess-news.com/2025/12/09/b...
Battery pack prices for stationary storage now down to $70/kWh in 2025, a 45% decrease in just one year.
www.ess-news.com/2025/12/09/b...
BNEF: Lithium-ion battery pack prices fall to $108/kWh, stationary storage becomes lowest price segment - Energy Storage
According to BNEF, battery pack prices for stationary storage fell to $70/kWh in 2025, a 45% decrease from 2024. This represents the steepest decline among all lithium-ion battery use cases and and ma...
www.ess-news.com
December 29, 2025 at 8:40 PM
Battery pack storage costs for WindWaterSolar are dropping so low that they eliminate the argument for using fossil fuels or nuclear moving forward.
Battery pack prices for stationary storage now down to $70/kWh in 2025, a 45% decrease in just one year.
www.ess-news.com/2025/12/09/b...
Battery pack prices for stationary storage now down to $70/kWh in 2025, a 45% decrease in just one year.
www.ess-news.com/2025/12/09/b...
Reposted by Dr. Aaron Thierry
With estimated battery system costs of $60/kWh by 2035, electrification of all energy plus use of WWS+storage reduces 2050 annual all-sector energy costs to the world by ~60%
web.stanford.edu/group/efmh/j...
web.stanford.edu/group/efmh/j...
BNEF: Lithium-ion battery pack prices fall to $108/kWh, stationary storage becomes lowest price segment - Energy Storage
According to BNEF, battery pack prices for stationary storage fell to $70/kWh in 2025, a 45% decrease from 2024. This represents the steepest decline among all lithium-ion battery use cases and and ma...
www.ess-news.com
December 29, 2025 at 8:41 PM
With estimated battery system costs of $60/kWh by 2035, electrification of all energy plus use of WWS+storage reduces 2050 annual all-sector energy costs to the world by ~60%
web.stanford.edu/group/efmh/j...
web.stanford.edu/group/efmh/j...
Reposted by Dr. Aaron Thierry
Dr. Mark Peifer (@peiferlabunc.bsky.social)argues that understanding the history of eugenics is critical for up-and-coming geneticists and should be included in college curriculums. www.cell.com/news-do/pr-e...
@cp-trendsgenetics.bsky.social
@cp-trendsgenetics.bsky.social
December 29, 2025 at 9:45 PM
Dr. Mark Peifer (@peiferlabunc.bsky.social)argues that understanding the history of eugenics is critical for up-and-coming geneticists and should be included in college curriculums. www.cell.com/news-do/pr-e...
@cp-trendsgenetics.bsky.social
@cp-trendsgenetics.bsky.social
Reposted by Dr. Aaron Thierry
Powerful Guardian editorial on urgent need for #climate adaptation & for “real plans, real finance, real justice”. And good to see shout out to work of @climatemajority.bsky.social & GlacierTrust showing adaptation as both essential in itself & as a spur to greater decarbonisation👇
The Guardian view on adapting to the climate crisis: it demands political honesty about extreme weather | Editorial
Editorial: Over the holiday period, the Guardian leader column is looking ahead at the themes of 2026. Today we look at how the struggle to adapt to a dangerously warming world has become a test of gl...
www.theguardian.com
December 27, 2025 at 5:26 PM
Powerful Guardian editorial on urgent need for #climate adaptation & for “real plans, real finance, real justice”. And good to see shout out to work of @climatemajority.bsky.social & GlacierTrust showing adaptation as both essential in itself & as a spur to greater decarbonisation👇
Reposted by Dr. Aaron Thierry
I’m very thankful to Stephanie Maltarich at @cires.colorado.edu for this writeup about efforts to reform how scientific fieldwork operates. To make it less hostile & exclusionary, and *actually* safer.
From our research talks @ AGU about this subject. The work is ongoing. #disability 🧪
From our research talks @ AGU about this subject. The work is ongoing. #disability 🧪
CIRES researchers challenge the status quo to make field research safer and more inclusive. New frameworks address both exclusionary policies and recommendations for hostile behaviors that occur once they get there: buff.ly/nn5rcMo #fieldwork #CIRES 📷 Lianna Nixon
December 29, 2025 at 10:34 PM
I’m very thankful to Stephanie Maltarich at @cires.colorado.edu for this writeup about efforts to reform how scientific fieldwork operates. To make it less hostile & exclusionary, and *actually* safer.
From our research talks @ AGU about this subject. The work is ongoing. #disability 🧪
From our research talks @ AGU about this subject. The work is ongoing. #disability 🧪
Reposted by Dr. Aaron Thierry
ICYMI - the latest monthly status on greenhouse gas levels...
For more NOAA data/info: gml.noaa.gov/ccgg/
For more NOAA data/info: gml.noaa.gov/ccgg/
December 29, 2025 at 1:48 AM
ICYMI - the latest monthly status on greenhouse gas levels...
For more NOAA data/info: gml.noaa.gov/ccgg/
For more NOAA data/info: gml.noaa.gov/ccgg/
Reposted by Dr. Aaron Thierry
"Targeting a #climate resilient, sustainable world involves fundamental changes to how society functions, including changes to underlying values, worldviews, ideologies, social structures, political and economic systems, and power relationships" - @ipcc.bsky.social
www.ipcc.ch/report/ar6/w...
www.ipcc.ch/report/ar6/w...
December 24, 2025 at 10:17 AM
"Targeting a #climate resilient, sustainable world involves fundamental changes to how society functions, including changes to underlying values, worldviews, ideologies, social structures, political and economic systems, and power relationships" - @ipcc.bsky.social
www.ipcc.ch/report/ar6/w...
www.ipcc.ch/report/ar6/w...
Reposted by Dr. Aaron Thierry
this is a very interesting topic, but the reason it's maybe my favourite episode of the year is all the other things it touches on regarding grid modernization, vpps and market structure.
Today on Volts: you've probably heard that Australia has cheap rooftop solar power. You've probably also heard some rumors & myths about it. (Is it destabilizing the grid?) I called my favorite Australian energy expert to clear it all up. This is a fun one!
www.volts.wtf/p/whats-the-...
www.volts.wtf/p/whats-the-...
What's the real story with Australian rooftop solar?
Saul Griffith joins me to debunk the myths surrounding Australia's massive influx of solar energy.
www.volts.wtf
December 28, 2025 at 9:56 PM
this is a very interesting topic, but the reason it's maybe my favourite episode of the year is all the other things it touches on regarding grid modernization, vpps and market structure.
Reposted by Dr. Aaron Thierry
Extinction rarely departs with drama, it slips out the back door while we’re still debating the guest list. These records are made official on the Red List. "Conservation failures are often recognised only once they can no longer be reversed."
via @mongabay.com: news.mongabay.com/short-articl...
via @mongabay.com: news.mongabay.com/short-articl...
December 29, 2025 at 3:18 AM
Extinction rarely departs with drama, it slips out the back door while we’re still debating the guest list. These records are made official on the Red List. "Conservation failures are often recognised only once they can no longer be reversed."
via @mongabay.com: news.mongabay.com/short-articl...
via @mongabay.com: news.mongabay.com/short-articl...
"We show that most ESMs inaccurately simulate terrestrial biological nitrogen fixation, differing from a new global synthesis of terrestrial BNF measurements across natural and agricultural biomes... As a result, ESMs could exaggerate plant carbon uptake as atmospheric CO2 concentration rises"
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
December 29, 2025 at 12:53 AM
"We show that most ESMs inaccurately simulate terrestrial biological nitrogen fixation, differing from a new global synthesis of terrestrial BNF measurements across natural and agricultural biomes... As a result, ESMs could exaggerate plant carbon uptake as atmospheric CO2 concentration rises"
Reposted by Dr. Aaron Thierry
The democratic paucity of the Westminster system means MPs have almost no say over trade policy, leaving it to be shaped almost entirely by big business - including the world’s oil giants. open.substack.com/pub/abolishw...
How British undemocracy lets big oil shape our trade policy - and drive climate crisis
Long read: British trade deals are being used to protect fossil fuel company assets around the world, and MPs barely get a say
open.substack.com
December 13, 2025 at 5:26 PM
The democratic paucity of the Westminster system means MPs have almost no say over trade policy, leaving it to be shaped almost entirely by big business - including the world’s oil giants. open.substack.com/pub/abolishw...
Reposted by Dr. Aaron Thierry
One thing 2025 made clear: Durable progress on climate in the US will require structural reform to our corrupted political systems. Otherwise, steps forward will always be vulnerable to the bloody clawbacks we saw this year. A political strategy that doesn't center system reform is not "pragmatic."
December 27, 2025 at 11:45 AM
One thing 2025 made clear: Durable progress on climate in the US will require structural reform to our corrupted political systems. Otherwise, steps forward will always be vulnerable to the bloody clawbacks we saw this year. A political strategy that doesn't center system reform is not "pragmatic."
Reposted by Dr. Aaron Thierry
'Climate pragmatism' is logically broken for many reasons but among the worst imo is:
(a) arguing against limiting fossil supply, bc cheap solar + free market will sort it out but
(b) supporting data centre growth so new clean energy DOESN'T cut down on fossil demand, and just meets growth instead
(a) arguing against limiting fossil supply, bc cheap solar + free market will sort it out but
(b) supporting data centre growth so new clean energy DOESN'T cut down on fossil demand, and just meets growth instead
December 28, 2025 at 2:29 PM
'Climate pragmatism' is logically broken for many reasons but among the worst imo is:
(a) arguing against limiting fossil supply, bc cheap solar + free market will sort it out but
(b) supporting data centre growth so new clean energy DOESN'T cut down on fossil demand, and just meets growth instead
(a) arguing against limiting fossil supply, bc cheap solar + free market will sort it out but
(b) supporting data centre growth so new clean energy DOESN'T cut down on fossil demand, and just meets growth instead