Sam Jackson
@smjcksn.com
Director of Climate Science & Impact at Ecologi. Writes about climate, nature, philosophy, and history. Bookish.
he/him
Views are my own
samgjackson.com
he/him
Views are my own
samgjackson.com
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Sam Jackson
@smjcksn.com
· Nov 23
Hi everyone 👋
Sam Jackson here, Director of Climate Science and Impact at Ecologi - ecologi.com
I will be posting about climate change, nature and net-zero. Also covering our work at Ecologi to help businesses accelerate climate action.
(And probably some personal posts about books and nature!)
Sam Jackson here, Director of Climate Science and Impact at Ecologi - ecologi.com
I will be posting about climate change, nature and net-zero. Also covering our work at Ecologi to help businesses accelerate climate action.
(And probably some personal posts about books and nature!)
Reposted by Sam Jackson
“One mile on a bike is a $.42 economic gain to society, one mile driving is a $.20 loss.”
“Which means that Copenhagen, a city of 1.2 million people, saves $357 million a year on health costs because something like 80% of its population commutes by bike.” #CityMakingMath
Some costs aren’t costs.
“Which means that Copenhagen, a city of 1.2 million people, saves $357 million a year on health costs because something like 80% of its population commutes by bike.” #CityMakingMath
Some costs aren’t costs.
One mile on a bike is a $.42 economic gain to society, one mile driving is a $.20 loss
Copenhagen, the bicycle-friendliest place on the planet, publishes a biannual Bicycle Account, and buried in its pages is a rather astonishing fact.
grist.org
November 21, 2025 at 12:40 AM
“One mile on a bike is a $.42 economic gain to society, one mile driving is a $.20 loss.”
“Which means that Copenhagen, a city of 1.2 million people, saves $357 million a year on health costs because something like 80% of its population commutes by bike.” #CityMakingMath
Some costs aren’t costs.
“Which means that Copenhagen, a city of 1.2 million people, saves $357 million a year on health costs because something like 80% of its population commutes by bike.” #CityMakingMath
Some costs aren’t costs.
Reposted by Sam Jackson
October 2025 was the warmest October on record for the #Arctic. Arctic sea-ice extent is currently the lowest on record for late November. My newest 'climate viz of the month' summarizes some of this latest data: zacklabe.com/climate-viz-...
#ClimateChange #SciComm #OpenScience #OpenData #DataViz
#ClimateChange #SciComm #OpenScience #OpenData #DataViz
Climate Viz of the Month
October 2025 Hi everyone! Instead of designing a new special feature visualization, this next ‘climate viz of the month’ blog will focus on briefly summarizing the recent extremes in th…
zacklabe.com
November 29, 2025 at 8:42 PM
October 2025 was the warmest October on record for the #Arctic. Arctic sea-ice extent is currently the lowest on record for late November. My newest 'climate viz of the month' summarizes some of this latest data: zacklabe.com/climate-viz-...
#ClimateChange #SciComm #OpenScience #OpenData #DataViz
#ClimateChange #SciComm #OpenScience #OpenData #DataViz
Reposted by Sam Jackson
🌿 Indigenous wisdom offers many ways: 10 diverse philosophies from around the world demonstrate how human-nature relationships can shift from domination to care.
@IPBES #TransformativeChange Assessment
Read the report: https://www.ipbes.net/transformative-change-assessment
@IPBES #TransformativeChange Assessment
Read the report: https://www.ipbes.net/transformative-change-assessment
December 1, 2025 at 7:50 AM
🌿 Indigenous wisdom offers many ways: 10 diverse philosophies from around the world demonstrate how human-nature relationships can shift from domination to care.
@IPBES #TransformativeChange Assessment
Read the report: https://www.ipbes.net/transformative-change-assessment
@IPBES #TransformativeChange Assessment
Read the report: https://www.ipbes.net/transformative-change-assessment
Reposted by Sam Jackson
Quite the quote on #COP30, by Professor Michael Jacobs of the think tank ODI Global and the University of Sheffield. Source: ‚Backchannel‘
November 22, 2025 at 11:51 PM
Quite the quote on #COP30, by Professor Michael Jacobs of the think tank ODI Global and the University of Sheffield. Source: ‚Backchannel‘
Reposted by Sam Jackson
Ok I see news reports lacking clarity. The two roadmaps announced by the COP30 Brazilian presidency on halting deforestation and transitioning away from fossil fuels are voluntary in nature. They were announced at the closing plenary without gavelling. They do not constitute a COP decision
November 23, 2025 at 6:50 AM
Ok I see news reports lacking clarity. The two roadmaps announced by the COP30 Brazilian presidency on halting deforestation and transitioning away from fossil fuels are voluntary in nature. They were announced at the closing plenary without gavelling. They do not constitute a COP decision
Reposted by Sam Jackson
Shots fired #COP30 plenary
PANAMA: "Mr. President, Panama is extremely disappointed. We were promised a transparent process. That is not what we're seeing. I raise my flag and you ignore it. I raise a point of order, and you ignore it. I sustain it, and it can be ignored."
PANAMA: "Mr. President, Panama is extremely disappointed. We were promised a transparent process. That is not what we're seeing. I raise my flag and you ignore it. I raise a point of order, and you ignore it. I sustain it, and it can be ignored."
November 22, 2025 at 4:56 PM
Shots fired #COP30 plenary
PANAMA: "Mr. President, Panama is extremely disappointed. We were promised a transparent process. That is not what we're seeing. I raise my flag and you ignore it. I raise a point of order, and you ignore it. I sustain it, and it can be ignored."
PANAMA: "Mr. President, Panama is extremely disappointed. We were promised a transparent process. That is not what we're seeing. I raise my flag and you ignore it. I raise a point of order, and you ignore it. I sustain it, and it can be ignored."
Reposted by Sam Jackson
"Too little was done too late”: New commentary with PIK director Johan Rockström warns of rising planetary risks after a missed decade of action. Climate & biosphere pressures keep increasing, but stabilising the Earth system is still within reach.
www.pik-potsdam.de/en/news/late...
www.pik-potsdam.de/en/news/late...
November 22, 2025 at 12:06 PM
"Too little was done too late”: New commentary with PIK director Johan Rockström warns of rising planetary risks after a missed decade of action. Climate & biosphere pressures keep increasing, but stabilising the Earth system is still within reach.
www.pik-potsdam.de/en/news/late...
www.pik-potsdam.de/en/news/late...
Reposted by Sam Jackson
Nearly 30 countries refuse to sign a final #COP30 agreement that doesn't include "fossil fuel phase-out," as negotiations head into overtime.
Live updates from @fionaharvey.bsky.social, @olliemilman.bsky.social and @theguardian.com here: www.theguardian.com/world/live/2...
Live updates from @fionaharvey.bsky.social, @olliemilman.bsky.social and @theguardian.com here: www.theguardian.com/world/live/2...
November 21, 2025 at 6:28 PM
Nearly 30 countries refuse to sign a final #COP30 agreement that doesn't include "fossil fuel phase-out," as negotiations head into overtime.
Live updates from @fionaharvey.bsky.social, @olliemilman.bsky.social and @theguardian.com here: www.theguardian.com/world/live/2...
Live updates from @fionaharvey.bsky.social, @olliemilman.bsky.social and @theguardian.com here: www.theguardian.com/world/live/2...
Reposted by Sam Jackson
Kicking off today's posts with a great resource recapping the main happenings and takeaways from COP30 (which ends today). Thank you Sam Jackson @smjcksn.com from Ecologi!
ecologi.com/resources/bl...
𝐂𝐥𝐢𝐦𝐚𝐭𝐞 𝐒𝐦𝐚𝐫𝐭 𝐃𝐞𝐬𝐢𝐠𝐧 𝘧𝘦𝘦𝘥: 𝘩𝘵𝘵𝘱𝘴://𝘭𝘯𝘬𝘥.𝘪𝘯/𝘦-_𝘺𝘊𝘤𝘠𝘋
#𝘊𝘭𝘪𝘮𝘢𝘵𝘦𝘚𝘮𝘢𝘳𝘵𝘋𝘦𝘴𝘪𝘨𝘯 + #𝘙𝘦𝘨𝘦𝘯𝘦𝘳𝘢𝘵𝘪𝘷𝘦𝘋𝘦𝘴𝘪𝘨𝘯
ecologi.com/resources/bl...
𝐂𝐥𝐢𝐦𝐚𝐭𝐞 𝐒𝐦𝐚𝐫𝐭 𝐃𝐞𝐬𝐢𝐠𝐧 𝘧𝘦𝘦𝘥: 𝘩𝘵𝘵𝘱𝘴://𝘭𝘯𝘬𝘥.𝘪𝘯/𝘦-_𝘺𝘊𝘤𝘠𝘋
#𝘊𝘭𝘪𝘮𝘢𝘵𝘦𝘚𝘮𝘢𝘳𝘵𝘋𝘦𝘴𝘪𝘨𝘯 + #𝘙𝘦𝘨𝘦𝘯𝘦𝘳𝘢𝘵𝘪𝘷𝘦𝘋𝘦𝘴𝘪𝘨𝘯
What's happening at COP30: and why it matters for your business | Ecologi
Discover what COP30 means for businesses and follow along with our daily updates from the summit in Belém.
ecologi.com
November 21, 2025 at 2:47 PM
Kicking off today's posts with a great resource recapping the main happenings and takeaways from COP30 (which ends today). Thank you Sam Jackson @smjcksn.com from Ecologi!
ecologi.com/resources/bl...
𝐂𝐥𝐢𝐦𝐚𝐭𝐞 𝐒𝐦𝐚𝐫𝐭 𝐃𝐞𝐬𝐢𝐠𝐧 𝘧𝘦𝘦𝘥: 𝘩𝘵𝘵𝘱𝘴://𝘭𝘯𝘬𝘥.𝘪𝘯/𝘦-_𝘺𝘊𝘤𝘠𝘋
#𝘊𝘭𝘪𝘮𝘢𝘵𝘦𝘚𝘮𝘢𝘳𝘵𝘋𝘦𝘴𝘪𝘨𝘯 + #𝘙𝘦𝘨𝘦𝘯𝘦𝘳𝘢𝘵𝘪𝘷𝘦𝘋𝘦𝘴𝘪𝘨𝘯
ecologi.com/resources/bl...
𝐂𝐥𝐢𝐦𝐚𝐭𝐞 𝐒𝐦𝐚𝐫𝐭 𝐃𝐞𝐬𝐢𝐠𝐧 𝘧𝘦𝘦𝘥: 𝘩𝘵𝘵𝘱𝘴://𝘭𝘯𝘬𝘥.𝘪𝘯/𝘦-_𝘺𝘊𝘤𝘠𝘋
#𝘊𝘭𝘪𝘮𝘢𝘵𝘦𝘚𝘮𝘢𝘳𝘵𝘋𝘦𝘴𝘪𝘨𝘯 + #𝘙𝘦𝘨𝘦𝘯𝘦𝘳𝘢𝘵𝘪𝘷𝘦𝘋𝘦𝘴𝘪𝘨𝘯
Reposted by Sam Jackson
Scientists at the Planetary Science Pavilion on #COP30: Most of the 1.5°C CO₂ budget is gone. 2025 emissions still rising. ~4 years of budget left. We need 5% cuts yearly & roadmap to phase out fossil fuels. Science must stay in the text, not be scrubbed.
planetarysciencepavilion.org/2025/11/14/s...
planetarysciencepavilion.org/2025/11/14/s...
November 15, 2025 at 12:57 PM
Scientists at the Planetary Science Pavilion on #COP30: Most of the 1.5°C CO₂ budget is gone. 2025 emissions still rising. ~4 years of budget left. We need 5% cuts yearly & roadmap to phase out fossil fuels. Science must stay in the text, not be scrubbed.
planetarysciencepavilion.org/2025/11/14/s...
planetarysciencepavilion.org/2025/11/14/s...
Reposted by Sam Jackson
The thing I despise is inhumanity. It’s not really a political position, it’s an existential one. But if your political party manoeuvres itself into a place where it practises and promotes inhumanity, I will despise you.
November 15, 2025 at 4:15 PM
The thing I despise is inhumanity. It’s not really a political position, it’s an existential one. But if your political party manoeuvres itself into a place where it practises and promotes inhumanity, I will despise you.
Reposted by Sam Jackson
Another dataset confirms that last month was the warmest October on record in the #Arctic. The previous record was 2024. This is already a month with a very large increasing temperature trend (i.e., Arctic amplification). Not good.
Data from NASA/GISS GISTEMPv4 (data.giss.nasa.gov/gistemp/).
Data from NASA/GISS GISTEMPv4 (data.giss.nasa.gov/gistemp/).
November 15, 2025 at 4:15 PM
Another dataset confirms that last month was the warmest October on record in the #Arctic. The previous record was 2024. This is already a month with a very large increasing temperature trend (i.e., Arctic amplification). Not good.
Data from NASA/GISS GISTEMPv4 (data.giss.nasa.gov/gistemp/).
Data from NASA/GISS GISTEMPv4 (data.giss.nasa.gov/gistemp/).
Reposted by Sam Jackson
I don't think we have any choice but to wrest control of society's resources away from these people, their whole vision for the future consists of nothing but faster nightmares unto doom
October 28, 2025 at 6:30 PM
I don't think we have any choice but to wrest control of society's resources away from these people, their whole vision for the future consists of nothing but faster nightmares unto doom
Reposted by Sam Jackson
A writer in Ohio calls the existential threat of climate change “a no-brainer.” A radiologist in Scotland describes it as “the greatest hazard to human health in history.” A finance worker, who lost their home in a California wildfire, says, “We have to hold the fossil fuel industry accountable.” 🧵
October 28, 2025 at 7:39 PM
A writer in Ohio calls the existential threat of climate change “a no-brainer.” A radiologist in Scotland describes it as “the greatest hazard to human health in history.” A finance worker, who lost their home in a California wildfire, says, “We have to hold the fossil fuel industry accountable.” 🧵
Reposted by Sam Jackson
I'll cautiously say I've noticed more skepticism about AI in the corporate world and it's mostly because people's coworkers are creating extra work for them. They don't have the vocabulary to describe it yet but it's basically the "Why should I read what you couldn't be bothered to write" thing
October 23, 2025 at 2:54 AM
I'll cautiously say I've noticed more skepticism about AI in the corporate world and it's mostly because people's coworkers are creating extra work for them. They don't have the vocabulary to describe it yet but it's basically the "Why should I read what you couldn't be bothered to write" thing
Reposted by Sam Jackson
Here is our exclusive survey asking leading climate scientists to give their views on solar geoengineering:
*66% believe we will see it attempted this century
*52% say it will probably be done by a "rogue actor"
*81% want an international treaty to manage risk
www.newscientist.com/article/2498...
*66% believe we will see it attempted this century
*52% say it will probably be done by a "rogue actor"
*81% want an international treaty to manage risk
www.newscientist.com/article/2498...
Exclusive: Climate scientists expect attempts to dim the sun by 2100
An exclusive New Scientist survey of leading scientists reveals widespread concern that schemes to tweak Earth’s atmosphere could launch within decades in a risky bid to cool the planet
www.newscientist.com
October 22, 2025 at 9:08 AM
Here is our exclusive survey asking leading climate scientists to give their views on solar geoengineering:
*66% believe we will see it attempted this century
*52% say it will probably be done by a "rogue actor"
*81% want an international treaty to manage risk
www.newscientist.com/article/2498...
*66% believe we will see it attempted this century
*52% say it will probably be done by a "rogue actor"
*81% want an international treaty to manage risk
www.newscientist.com/article/2498...
Reposted by Sam Jackson
Both sides of a conflict are calling each other evil and corrupt, rendering me, a humble journalist, helpless to discern the truth. Best I can do is let you know that both sides are in fact saying those things. Hope this helps
October 14, 2025 at 5:54 PM
Both sides of a conflict are calling each other evil and corrupt, rendering me, a humble journalist, helpless to discern the truth. Best I can do is let you know that both sides are in fact saying those things. Hope this helps
Reposted by Sam Jackson
Um. There’s a woman presenting this too.
Rylan Clark is set to delve into the eerie world of witchcraft in his new show, The Witches Of Essex.
Rylan Clark slams 'misogyny' in British witch hunt as he fronts new Sky show
Rylan Clark shares the spotlight with professor Alice Roberts in The Witches Of Essex, where the pair delve into the dark history of witch hunts - and one discovery rattled Rylan.
www.ok.co.uk
October 13, 2025 at 12:37 AM
Um. There’s a woman presenting this too.
Reposted by Sam Jackson
NEW: China's president Xi Jinping unexpectedly joins the UN climate summit, by video, to offer his nation's 2035 climate pledge
* Cut GHGs to 7-10% below peak by 2035, "striving to do better"
* Raise non-fossil share of energy to at least 30%
* Boost wind/solar to 3,600GW
* Cut GHGs to 7-10% below peak by 2035, "striving to do better"
* Raise non-fossil share of energy to at least 30%
* Boost wind/solar to 3,600GW
September 24, 2025 at 6:37 PM
NEW: China's president Xi Jinping unexpectedly joins the UN climate summit, by video, to offer his nation's 2035 climate pledge
* Cut GHGs to 7-10% below peak by 2035, "striving to do better"
* Raise non-fossil share of energy to at least 30%
* Boost wind/solar to 3,600GW
* Cut GHGs to 7-10% below peak by 2035, "striving to do better"
* Raise non-fossil share of energy to at least 30%
* Boost wind/solar to 3,600GW
The whole sequence leading up to Alfred’s death in The Last Kingdom is just so masterfully done. Some of the best TV ever in my humblest of opinions. Wonderful.
September 24, 2025 at 6:52 PM
The whole sequence leading up to Alfred’s death in The Last Kingdom is just so masterfully done. Some of the best TV ever in my humblest of opinions. Wonderful.
Reposted by Sam Jackson
for all people mock it wikipedia is genuinely one of the wonders of the modern world
September 21, 2025 at 7:54 PM
for all people mock it wikipedia is genuinely one of the wonders of the modern world
Just got back from How The Light Gets In festival and it was wondrous.
September 21, 2025 at 9:09 PM
Just got back from How The Light Gets In festival and it was wondrous.
Reposted by Sam Jackson
This is simply untenable. There is no way forward with media and political classes captured by the right. Every time someone commits a crime you have to pray it's not an undesirable or it's purge time, then when it turns out to be themselves again they just shrug and wait for the next one.
September 12, 2025 at 7:55 PM
This is simply untenable. There is no way forward with media and political classes captured by the right. Every time someone commits a crime you have to pray it's not an undesirable or it's purge time, then when it turns out to be themselves again they just shrug and wait for the next one.