Matthew MacLeod
@mattmacleod.bsky.social
Professor of Environmental Science at Stockholm University engaged in modeling and measuring chemicals & plastic in the environment.
https://www.su.se/english/profiles/mmacl-1.187905
https://scholar.google.com/citations?user=u6v91AgAAAAJ
https://www.su.se/english/profiles/mmacl-1.187905
https://scholar.google.com/citations?user=u6v91AgAAAAJ
Alasdair Skelton @alasdair-skelton.bsky.social ruined my morning with his excellent writing...
takingontheclimatecrisis.substack.com/p/the-empty-...
takingontheclimatecrisis.substack.com/p/the-empty-...
The Empty Chair
On mass extinction and what it means.
takingontheclimatecrisis.substack.com
November 17, 2025 at 2:26 PM
Alasdair Skelton @alasdair-skelton.bsky.social ruined my morning with his excellent writing...
takingontheclimatecrisis.substack.com/p/the-empty-...
takingontheclimatecrisis.substack.com/p/the-empty-...
Fun with the @washingtonpost.com 's new AI...
September 25, 2025 at 1:40 PM
Fun with the @washingtonpost.com 's new AI...
Reposted by Matthew MacLeod
a month on, @magnuslovold.bsky.social comments on the final day of UN global plastic treaty negotiations in Geneva
there were rumours circulating in whatsapp groups about UNEP engaging in what might best be termed 'discretionary governance' - this blog details some of the chaos that unfolded
there were rumours circulating in whatsapp groups about UNEP engaging in what might best be termed 'discretionary governance' - this blog details some of the chaos that unfolded
Palace intrigues
The plastics treaty talks in Geneva ended without a deal. As negotiators weigh their options about the way forward, troubling questions are…
medium.com
September 19, 2025 at 4:30 PM
a month on, @magnuslovold.bsky.social comments on the final day of UN global plastic treaty negotiations in Geneva
there were rumours circulating in whatsapp groups about UNEP engaging in what might best be termed 'discretionary governance' - this blog details some of the chaos that unfolded
there were rumours circulating in whatsapp groups about UNEP engaging in what might best be termed 'discretionary governance' - this blog details some of the chaos that unfolded
Reposted by Matthew MacLeod
For the first time since Stockholm Univ. was awarded UN observer status, a researcher (Prado Domercq) attended negotiations on a global treaty to end plastic pollution as part of the Scientists' Coalition for an Effective Plastics Treaty. @marleneagerstrand.bsky.social
www.su.se/department-o...
www.su.se/department-o...
When science meets politics: Inside the stalled plastics treaty negotiations - Department of Environmental Science
This August, delegates from 183 nations gathered in a spacious UN hall in Geneva with a daunting task: to negotiate the world’s first legally binding treaty to end plastic pollution. More than 2,600 p...
www.su.se
September 18, 2025 at 7:34 AM
For the first time since Stockholm Univ. was awarded UN observer status, a researcher (Prado Domercq) attended negotiations on a global treaty to end plastic pollution as part of the Scientists' Coalition for an Effective Plastics Treaty. @marleneagerstrand.bsky.social
www.su.se/department-o...
www.su.se/department-o...
Reposted by Matthew MacLeod
See Prof. Nina Kirchner, director of @tarfalaresstation.bsky.social, in @svtnyheter.bsky.social earlier today on how the southern peak of #Kebenekaise continues to melt. 1,5 meters since last year... 🌡️⛰️🥵
(In Swedish)
(In Swedish)
Kebnekaises sydtopp fortsätter att minska. Årets sommarmätning av glaciologiprofessor Nina Kirchner och hennes kollegor vid @tarfalaresstation.bsky.social visar att toppen minskat med 1,5 meter jämfört med förra året. #Klimat #Kebnekaise Se inslag i SVT:
www.svt.se/nyheter/loka...
www.svt.se/nyheter/loka...
Kebnekaises sydtopp fortsätter smälta
Kebnekaises sydtopp fortsätter att minska. Årets sommarmätning visar att toppen minskat med 1,5 meter jämfört med förra året.
www.svt.se
September 12, 2025 at 12:19 PM
See Prof. Nina Kirchner, director of @tarfalaresstation.bsky.social, in @svtnyheter.bsky.social earlier today on how the southern peak of #Kebenekaise continues to melt. 1,5 meters since last year... 🌡️⛰️🥵
(In Swedish)
(In Swedish)
Reposted by Matthew MacLeod
Tarfala's 80 Year Anniversary Conference @stockholm-uni.bsky.social @bolincentre.bsky.social has just started! Thank your our international speakers from Switzerland, Norway, Germany and UK making the first sessions really exciting! Artwork in the conference logo by @dominoajones.bsky.social
August 25, 2025 at 1:54 PM
Tarfala's 80 Year Anniversary Conference @stockholm-uni.bsky.social @bolincentre.bsky.social has just started! Thank your our international speakers from Switzerland, Norway, Germany and UK making the first sessions really exciting! Artwork in the conference logo by @dominoajones.bsky.social
Reposted by Matthew MacLeod
Scientists from Stockholm University + Swedish Museum of Natural history, in collaboration with partners in Greenland and Canada, have identified a previously undocumented class of #PFAS in blubber of killer whales. New study in Environmental Science & Technology Letters.
www.su.se/english/news...
www.su.se/english/news...
New ‘forever chemicals’ found in whale blubber challenge our understanding of PFAS - Stockholm University
Scientists from Stockholm University and the Swedish Museum of Natural history, in collaboration with partners in Greenland and Canada, have identified a previously undocumented class of PFAS* in the ...
www.su.se
August 19, 2025 at 5:33 AM
Scientists from Stockholm University + Swedish Museum of Natural history, in collaboration with partners in Greenland and Canada, have identified a previously undocumented class of #PFAS in blubber of killer whales. New study in Environmental Science & Technology Letters.
www.su.se/english/news...
www.su.se/english/news...
Reposted by Matthew MacLeod
Fans of "slow television" are in for a treat, as Swedish TV is live-streaming the effort to move an entire church in Kiruna from one place to another over the course of two days: www.svtplay.se/video/KnDgQ9... Enjoy!
Den stora kyrkflytten – Första dagen
I direktsändning följer vi den världsunika flytten av Kiruna kyrka, från gamla stadskärnan till dess nya plats, fem kilometer bort. Den stora kyrkflytten tar två dagar och är en del av den omfattande ...
www.svtplay.se
August 19, 2025 at 7:05 AM
Fans of "slow television" are in for a treat, as Swedish TV is live-streaming the effort to move an entire church in Kiruna from one place to another over the course of two days: www.svtplay.se/video/KnDgQ9... Enjoy!
Reposted by Matthew MacLeod
July was warm. Here are #warmingstripes @edhawkins.org showing average july temperature at #TarfalaResearchStation @stockholmuni.bsky.social @bolincentre.bsky.social. One definition of the Arctic is that July temps stay below 10 C - according to this, we are not in the Arctic...But we are...
August 2, 2025 at 4:08 AM
July was warm. Here are #warmingstripes @edhawkins.org showing average july temperature at #TarfalaResearchStation @stockholmuni.bsky.social @bolincentre.bsky.social. One definition of the Arctic is that July temps stay below 10 C - according to this, we are not in the Arctic...But we are...
Reposted by Matthew MacLeod
High concentrations of nanoplastic particles were found in locations across the North Atlantic Ocean, particularly in the top 10 metres of water and near coastlines, according to an analysis in Nature. go.nature.com/44ohIok 🌊 🧪
July 10, 2025 at 1:04 PM
High concentrations of nanoplastic particles were found in locations across the North Atlantic Ocean, particularly in the top 10 metres of water and near coastlines, according to an analysis in Nature. go.nature.com/44ohIok 🌊 🧪
Reposted by Matthew MacLeod
Today we made history.
Countries have come together & agreed the new Intergovernmental Science-Policy Panel on Chemicals, Waste and Pollution that will provide the 🌍 with robust, independent science.
Environmental multilateralism delivering again, #ForPeopleForPlanet.
www.unep.org/news-and-sto...
Countries have come together & agreed the new Intergovernmental Science-Policy Panel on Chemicals, Waste and Pollution that will provide the 🌍 with robust, independent science.
Environmental multilateralism delivering again, #ForPeopleForPlanet.
www.unep.org/news-and-sto...
June 20, 2025 at 6:48 PM
Today we made history.
Countries have come together & agreed the new Intergovernmental Science-Policy Panel on Chemicals, Waste and Pollution that will provide the 🌍 with robust, independent science.
Environmental multilateralism delivering again, #ForPeopleForPlanet.
www.unep.org/news-and-sto...
Countries have come together & agreed the new Intergovernmental Science-Policy Panel on Chemicals, Waste and Pollution that will provide the 🌍 with robust, independent science.
Environmental multilateralism delivering again, #ForPeopleForPlanet.
www.unep.org/news-and-sto...
Reposted by Matthew MacLeod
In a new paper, 22 scientists—including Professor Ian Cousins and Associate Professor Marlene Ågerstrand at Department of Environmental Science @stockholm-uni.bsky.social —defend the current definition of PFASs established by the OECD. #PFAS #Chemistry
www.su.se/department-o...
www.su.se/department-o...
Scientists defend widely used definition of PFASs - Department of Environmental Science
In a new paper published today in Environmental Science & Technology Letters, 22 scientists—including Professor Ian Cousins and Associate Professor Marlene Ågerstrand from the Department of Environmen...
www.su.se
June 11, 2025 at 5:12 AM
In a new paper, 22 scientists—including Professor Ian Cousins and Associate Professor Marlene Ågerstrand at Department of Environmental Science @stockholm-uni.bsky.social —defend the current definition of PFASs established by the OECD. #PFAS #Chemistry
www.su.se/department-o...
www.su.se/department-o...
{Corporations : Chronic Disease :: Mosquitoes : Communicable Disease}
Enlightening analogy by @traceywoodruff.bsky.social in @newscientist.com
www.newscientist.com/article/2481...
Enlightening analogy by @traceywoodruff.bsky.social in @newscientist.com
www.newscientist.com/article/2481...
Do corporations actually have more control over your health than you?
From the food on supermarket shelves to the air we breathe, large companies exert a greater impact on our health than we might realise, argues health scientist Tracey Woodruff
www.newscientist.com
June 10, 2025 at 7:14 AM
{Corporations : Chronic Disease :: Mosquitoes : Communicable Disease}
Enlightening analogy by @traceywoodruff.bsky.social in @newscientist.com
www.newscientist.com/article/2481...
Enlightening analogy by @traceywoodruff.bsky.social in @newscientist.com
www.newscientist.com/article/2481...
Reposted by Matthew MacLeod
Complaints about "viewpoint diversity" were always affirmative action for conservatives
In an effort to attract more conservative faculty, some elite universities are borrowing tactics long used to promote racial diversity, Rose Horowitch writes.
The Era of DEI for Conservatives Has Begun
In an effort to attract more right-leaning faculty, some elite universities are borrowing tactics long used to promote racial diversity.
bit.ly
June 5, 2025 at 7:24 AM
Complaints about "viewpoint diversity" were always affirmative action for conservatives
Reposted by Matthew MacLeod
Inkscape plugin to rescale figures without distorting the text, and other useful features!
github.com/burghoff/Sci...
github.com/burghoff/Sci...
June 2, 2025 at 12:15 PM
Inkscape plugin to rescale figures without distorting the text, and other useful features!
github.com/burghoff/Sci...
github.com/burghoff/Sci...
Reposted by Matthew MacLeod
The MAHA report highlights the need to "understand and reduce the cumulative chemical load on our children" and calls for "new risk evaluation tools" that incorporate AI... explain to me why, then, our grant from the EPA to do pretty much EXACTLY THAT was terminated 2 months after it was awarded.
High-throughput method development to acquire chemical data needed to inform environmental molecular lifecycles that guide sustainable chemical assessment |
Research Project Database | Grantee Re...
cfpub.epa.gov
May 30, 2025 at 6:03 PM
The MAHA report highlights the need to "understand and reduce the cumulative chemical load on our children" and calls for "new risk evaluation tools" that incorporate AI... explain to me why, then, our grant from the EPA to do pretty much EXACTLY THAT was terminated 2 months after it was awarded.
Reposted by Matthew MacLeod
New review concludes: "Nonetheless, emerging evidence indicates microplastics interact, traverse and compromise the integrity of these complex barriers."
doi.org/10.1016/j.en...
doi.org/10.1016/j.en...
May 22, 2025 at 7:32 AM
New review concludes: "Nonetheless, emerging evidence indicates microplastics interact, traverse and compromise the integrity of these complex barriers."
doi.org/10.1016/j.en...
doi.org/10.1016/j.en...
Reposted by Matthew MacLeod
🦄 Clever new accounting tricks like this intransparent mass balance scheme will not solve the #plastic crisis but rather enable increasing plastic production via #greenwashing 🔽
The misleading accounting behind your ‘recycled’ plastic.
A convoluted credit system allows companies to label virgin plastic as recycled. Here's how it works.
grist.org/accountabili...
#Plastic #Recycling #Environment #Health #Wellness #Climate
A convoluted credit system allows companies to label virgin plastic as recycled. Here's how it works.
grist.org/accountabili...
#Plastic #Recycling #Environment #Health #Wellness #Climate
The misleading accounting behind your ‘recycled’ plastic
A convoluted credit system allows companies to label virgin plastic as recycled. Here's how it works.
grist.org
May 12, 2025 at 7:10 PM
🦄 Clever new accounting tricks like this intransparent mass balance scheme will not solve the #plastic crisis but rather enable increasing plastic production via #greenwashing 🔽
Reposted by Matthew MacLeod
Last year alone, the world generated around 400 million tonnes of plastic waste.
Ahead of #WorldEnvironmentDay, here’s a closer look at what plastic pollution is, why it’s such a problem, and what can be done about it.
www.unep.org/news-and-sto...
Ahead of #WorldEnvironmentDay, here’s a closer look at what plastic pollution is, why it’s such a problem, and what can be done about it.
www.unep.org/news-and-sto...
May 6, 2025 at 1:04 PM
Last year alone, the world generated around 400 million tonnes of plastic waste.
Ahead of #WorldEnvironmentDay, here’s a closer look at what plastic pollution is, why it’s such a problem, and what can be done about it.
www.unep.org/news-and-sto...
Ahead of #WorldEnvironmentDay, here’s a closer look at what plastic pollution is, why it’s such a problem, and what can be done about it.
www.unep.org/news-and-sto...
Reposted by Matthew MacLeod
Register for Tarfala Research Stations 80 Year Anniversary Conference! @stockholm-uni.bsky.social @bolincentre.bsky.social @vaw-glaciology.bsky.social @swisspolar.bsky.social @matthias-huss.bsky.social #SwedishPolarResearch #SMHI. Artwork by @dominoajones.bsky.social
bsky.app/profile/tarf...
bsky.app/profile/tarf...
May 5, 2025 at 5:15 AM
Register for Tarfala Research Stations 80 Year Anniversary Conference! @stockholm-uni.bsky.social @bolincentre.bsky.social @vaw-glaciology.bsky.social @swisspolar.bsky.social @matthias-huss.bsky.social #SwedishPolarResearch #SMHI. Artwork by @dominoajones.bsky.social
bsky.app/profile/tarf...
bsky.app/profile/tarf...
Reposted by Matthew MacLeod
I’m going to start using “eatings” to mean “food”.
April 28, 2025 at 7:33 AM
I’m going to start using “eatings” to mean “food”.
Reposted by Matthew MacLeod
I tell my students that the best things they can do for climate are to stop eating cow and dairy, stop buying so much stuff, and vote for politicians who will do something about climate change.
What’s the Best Thing I Can Do for the Planet? (Gift Article)
For Earth Day, we asked the experts. They shared advice on how to be the best planetary citizen possible.
www.nytimes.com
April 22, 2025 at 3:34 PM
I tell my students that the best things they can do for climate are to stop eating cow and dairy, stop buying so much stuff, and vote for politicians who will do something about climate change.