The MAGA response to wildfire smoke is like a CT scan of their raddled bellicosity open.substack.com/pub/billmcki...
Smoke Gets In Your...Hole Where Your Soul Should Be
MAGA may have a set a new mark for belligerent stupidity
open.substack.com
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
When I was writing this piece about the Ocean Cleanup, I had a surreal experience: They assured me that they only kill invasive species, and sent me a published paper to demonstrate that. But the paper said the opposite! I wonder how many journalists just took their word for it and didn't check?
Why The Ocean Cleanup Hasn’t Solved the Plastic Pollution Crisis • The Revelator
Global problems are rarely solved by one person or invention. The Ocean Cleanup didn’t work, for the reasons experts said it wouldn’t. What can we learn from this?
therevelator.org
I am looking for a PHD student to join my group to study safe and sustainable chemicals and materials for space exploration! See details and apply at the link below... su.varbi.com/en/what:job/...
PhD student in Environmental Science: Safe & Sustainable Space Exploration
The Department of Environmental Science is one of the biggest departments at the Faculty of Science. The department consists of four units with more than 170 researchers, teachers, doctoral students a
su.varbi.com
Tips for becoming a better mentor/supervisor, based on survey of 2,600 early-career researchers; eg. regular meetings are super-important Includes tips for institutions and funding bodies to promote good supervision doi.org/10.64898/202... #AcademicSky HT @science.org
Thanks to everyone who came to the UTOPIA training this morning! We had great discussions about how we can use evaluative models for scenario assessment, challenges in parameterization, and how we can adapt for regional/local contexts. #SETACMaastricht #SETACEurope @mattmacleod.bsky.social
Happy to welcome Jessie at SU! 🥳
Stockholm University@stockholm-uni.bsky.social · 3mo agoThe Swedish Research Council has decided to give funding to Prof @pzieger.bsky.social at Stockholm University to recruit Jessie Creamean at Colorado State University as guest researcher to study airborne aerosol particles. @bolincentre.bsky.social #Aerosols #Climate www.su.se/english/news...
The Swedish Research Council has decided to give funding to Prof @pzieger.bsky.social at Stockholm University to recruit Jessie Creamean at Colorado State University as guest researcher to study airborne aerosol particles. @bolincentre.bsky.social #Aerosols #Climate www.su.se/english/news...
The winter season at #TarfalaResearchStation @stockholm-uni.bsky.social @bolincentre.bsky.social is completed, and the data from all winter glacier mass balance measurements has now been processed. @srnyheter.bsky.social #Sameradion was first to report: www.sverigesradio.se/artikel/fjal...
The Curiosity rover detected over 20 organic molecules in 3.5-billion-year-old Martian rocks using a wet chemistry experiment, showing complex carbon compounds can survive for billions of years and may preserve clues about Mars’ past habitability, according to a paper in Nature Communications. 🔭🧪
Diverse organic molecules on Mars revealed by the first SAM TMAH experiment - Nature Communications
Curiosity detected over 20 organic molecules in 3.5-billion-year-old Martian rocks using a wet chemistry experiment, showing complex carbon compounds can survive for billions of years and may preserve clues about Mars’ past habitability
go.nature.com
Conservatives' efforts to "fix" academia has much in common with Elon Musk's attempt to "fix" Twitter. Please stay with me 🧵/1 www.thecrimson.com/article/2026...
Harvard Asks Donors to Endow $10 Million Professorships for ‘Viewpoint Diversity’ Initiative | News | The Harvard Crimson
Harvard is quietly asking donors for $10 million gifts to establish new endowed professorships in a sweeping bid to reshape its faculty under the banner of “viewpoint diversity,” according to two peop...
thecrimson.com
Very happy to celebrate the publication of this important paper on crediting and citing Indigenous knowledges within the research. A special thanks to @christine-barry.bsky.social, Uncle Bob Muir and @conservbytes.bsky.social for leading this initiative.
Crediting and citing Indigenous Knowledges within research
Abstract. Knowledge exchanges between Indigenous and scientific communities occur regularly, with researchers frequently seeking and benefiting from Indige
academic.oup.com
Very cool new study reports real-time measurement of MCCPs in Oklahoma doi.org/10.1021/acse.... I think the day-night variability they see could be "nighttime depletion" under the nocturnal boundary layer, which we described for PCBs at Hazelrigg in this paper: pubs.acs.org/doi/full/10.....
Real-Time Measurements of Gas-Phase Medium-Chain Chlorinated Paraffins Reveal Daily Changes in Gas-Particle Partitioning Controlled by Ambient Temperature
Chlorinated paraffins (CPs) are synthetic polychlorinated n-alkanes produced as mixtures of a range of CxClyH2x–y+2 formulas. CPs have numerous industrial applications but are toxic, long-lived, and environmentally ubiquitous with environmental releases occurring throughout their production, use, and disposal. Short-chain chlorinated paraffins (SCCPs, C10–13) have been regulated by the United States Environmental Protection Agency since 2009 and by the Stockholm Convention since 2017. SCCP regulation is expected to cause increased production of medium-chain chlorinated paraffins (MCCPs; C14–17), which are currently under consideration for Stockholm Convention regulations. Thus, there is a need to improve the understanding of MCCP environmental transport, distribution, and fate. Existing measurements are limited in their spatial and temporal coverage. Measurements of CP atmospheric loading are particularly scarce. Historically, these measurements have required long sampling times, obscuring the temporal behavior of atmospheric CPs. We report real-time in situ measurements of 18 gas-phase MCCPs. These measurements were made in the United States Southern Great Plains with nitrate ion chemical ionization mass spectrometry (NO3–CIMS). The estimated average lower-limit concentration of MCCPs is on the order of single-digit ng/m3. MCCP diel behavior is partially explained by gas-particle partitioning with implications for MCCP transport and lifetimes.
doi.org
I'm are pleased to share our latest study examining an overlooked dimension of #microplastic exposure pathways. In this study, we provide the first international evidence that cigarette tobacco itself—independent of filters—contains microplastics at measurable levels. doi.org/10.1016/j.en...
Wow. More than 17,300 downloads in 2 weeks since publication: Global human population has surpassed Earth’s sustainable carrying capacity iopscience.iop.org/article/10.1... #overpopulation
New article about the global state of glaciers out: rdcu.be/fctdV For Swedish glaciers, 2025 was a "good bad year": There was much less melt than compared to the record high mass losses in 2024, but the overall balance was still negative @stockholm-uni.bsky.social @bolincentre.bsky.social
Global glacier mass change in 2025
Nature Reviews Earth & Environment - Glaciers lost 408 ± 132 Gt of mass during the hydrological year 2025, equivalent to 1.1 ± 0.4 mm sea-level rise. Since 1975, glacier mass loss has...
rdcu.be
I don't remember seeing an image of Earth before that captures the (thin, fragile, tiny layer of) atmosphere so clearly. I mean, look at that.
David Ho@davidho.bsky.social · 4mo agoThe last time human eyes were far enough from Earth to see the whole globe was December 1972. www.nasa.gov/image-detail...
Only 16 km separates the La Paz-El Alto metropolis (1.8M people) from a Bolivian Andes peak. Yet soils above 5000m show elevated pollution levels and distinct chemical fingerprints pointing to distant sources. Is long-range transport dominating pollution at the summit? pubs.acs.org/doi/10.1021/...
Warmest march month @bolincentre.bsky.social @stockholm-uni.bsky.social #SMHI: www.svt.se/nyheter/loka... We read out data from #TarfalaResearchStation s Automated Weather Station and confirm: It was the warmest march month here since 1965, with a monthly average of only -3.6 C this year
I guess we can file this under "better late than never." www.thelancet.com/journals/lan... @kaurov.org @rproctor.bsky.social
Retraction: Cosmetic talc powder
On June 25, 1977, The Lancet published an unsigned commentary1 that discussed the possibility of asbestos in talcum powder causing cancer and other fatal diseases. It concluded: “there is no reason to...
thelancet.com
If all goes according to plan, in a few hours, a crew of astronauts will begin a journey that will take them on a loop around the moon. Here's a video that NASA put together to help people visualize the journey through space, first orbiting the earth before looping around the moon and flying home 🔭
This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.
Check out our new paper in ES&T describing science & policy needs to achieve "no- or low-exposure by design" for chemicals & materials that are sent to Mars. Led by John Hader, with @marleneagerstrand.bsky.social. #openaccess in @envirosci.acspublications.org. doi.org/10.1021/acs....
Toward “Safe” Chemicals and Materials on Mars: Knowledge Gaps for Expanding Planetary Protection Requirements
The United Nations Outer Space Treaty states that the exploration of celestial bodies must avoid “harmful contamination” which may impede scientific exploration by other parties to the treaty. To guid...
doi.org
Great to be part of the team contributing to this new book on #microplastics and #nanoplastics. I helped with two chapters alongside super co-authors @praetorius-a.bsky.social, @mattmacleod.bsky.social, @pradodomercq.bsky.social, Patrizia Schmidt and Wendel Wohlleben.
Royal Society of Chemistry@rsc.org · 4mo agoLaunched on Monday, this book offers a timely, research driven foundation for anyone wanting to understand the science and the complexity of this global issue➡️ books.rsc.org/books/edited... #RSCBooks #PlasticInTheEnvironment #Microplastics #ChemSky
Proud to have written a chapter on micro- and nanoplastic environmental transport and fate modelling (chapter 9) in this new RSC book on Microplastic and Nanoplastics in the environment, together with @pradodomercq.bsky.social @samharrison.science and @mattmacleod.bsky.social
Royal Society of Chemistry@rsc.org · 4mo agoLaunched on Monday, this book offers a timely, research driven foundation for anyone wanting to understand the science and the complexity of this global issue➡️ books.rsc.org/books/edited... #RSCBooks #PlasticInTheEnvironment #Microplastics #ChemSky