Mattias Hallquist
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superhallq.bsky.social
Mattias Hallquist
@superhallq.bsky.social
790 followers 1K following 160 posts

Swedish or English...321.65ppm CO2, atmospheric chemistry, climate, society, air quality GAIS rättvisa forskning skriver privat📎

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Environmental science 41%
Geology 18%
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superhallq.bsky.social
Mattias Hallquist @superhallq.bsky.social · 6d
Skulle vara skoj att jobba med en CUL doktorand. Utveckla lärandet inom klimat och luftkvalitet.

www.gu.se/culf/forskar...

Reposted by Mattias Hallquist

michaelemann.bsky.social
Michael E. Mann @michaelemann.bsky.social · 9d
#ScienceUnderSiege
www.usatoday.com/story/news/p...
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
www.usatoday.com

superhallq.bsky.social
Mattias Hallquist @superhallq.bsky.social · 9d
We (Geretti and co-workers) continue to explore the atmospheric chemistry and SOA formation at elevated HO2/RO2 levels:

Changes in Secondary Organic Aerosol Composition and Volatility Going from a Low to a High HO2/RO2 Regime in α-Pinene Photooxidation | ACS ES&T Air pubs.acs.org/doi/full/10....
Changes in Secondary Organic Aerosol Composition and Volatility Going from a Low to a High HO2/RO2 Regime in α-Pinene Photooxidation
The mechanisms of secondary organic aerosol (SOA) formation are not yet fully understood. The relative abundance of hydroperoxyl radicals (HO2) and peroxy radicals (RO2) affects SOA properties, but ch...
pubs.acs.org

Reposted by Mattias Hallquist

srnyheter.bsky.social
Nyheter från Sveriges Radio @srnyheter.bsky.social · 10d
Sveriges Radio: Sveriges utsläpp av växthusgaser ökar

https://www.sverigesradio.se/artikel/9117088
Sveriges utsläpp av växthusgaser ökar - Ekot
Sveriges utsläpp av växthusgaser ökade med drygt sju procent under 2024 jämfört med året före, enligt Naturvårdsverkets slutsiffror.Sverige kommer att ...
www.sverigesradio.se

Reposted by Mattias Hallquist

pappahutten.bsky.social
Minister för Popmusik och Skörlevnad @pappahutten.bsky.social · 13d
Men han har väl redan pratat med sonen vid köksbordet? Hur hård ska han vara?

Reposted by Mattias Hallquist

edithhammer.bsky.social
Edith Hammer @edithhammer.bsky.social · 15d
Door 10 of our soilwatching #adventkalender www.instagram.com/soilwatching

Reposted by Mattias Hallquist

ianhall.bsky.social
Ian Hall @ianhall.bsky.social · 16d
Human-caused climate warming is supported by atmospheric chemistry, energy-balance models, and observational datasets.

EPA: ‘Let’s remove it from the website’.

Apparently peer-review is now a Cult™ doctrine.

www.independent.co.uk/news/world/a...
The EPA erases mentions of human-fueled climate change from its web pages
A spokesperson for the EPA said the agency ‘no longer takes marching orders from the climate cult’
www.independent.co.uk

Reposted by Mattias Hallquist

mikarantane.bsky.social
Mika Rantanen @mikarantane.bsky.social · 17d
New evidence suggests weather persistence is increasing in the northern mid– and high latitudes due to climate change.

So far, I’ve been skeptical as the signal seems small compared to natural variability, but maybe it’s time to update my thinking.

www.nature.com/articles/s43...
Enhanced weather persistence due to amplified Arctic warming - Communications Earth & Environment
Weather persistence, in terms of duration of surface-air temperature anomalies across all weather types and seasons in Northern Hemisphere mid-latitudes, has increased in recent decades due to Arctic ...
www.nature.com

Reposted by Kim L. Scheppele, Mark Lubell, Andy Baker , and 14 more

celestelabedz.bsky.social
Celeste Labedz @celestelabedz.bsky.social · 20d
It's over.

Despite the fact that the academic council recommended against it, despite the fact that the program brought in more tuition than it cost, and despite the fact that Nebraskans need & deserve this expertise, Earth & Atmospheric Sciences will be cut.

www.dailynebraskan.com/news/adminis...
BREAKING: ‘This hurts’: UNL eliminates 4 programs despite faculty, student pleas
The University of Nebraska-Lincoln eliminates the Earth and atmospheric sciences 8-0, educational administration 7-1, statistics 7-1, textiles, merchandising and fashion design 7-1 programs.
www.dailynebraskan.com

Reposted by Mattias Hallquist, Rupert Read

climatecasino.net
Prof. Eliot Jacobson @climatecasino.net · 20d
Breaking News!
Code Yikes!

The CO2 data for November, 2025, was just released by NOAA, and the 3-year mean rate of atmospheric CO2 growth hit yet another new record high, at 7.93 ppm per 3 years.

That dip in the early 1990's is due to Mt. Pinatubo.

gml.noaa.gov/ccgg/trends/

Reposted by Mattias Hallquist

ncas-uk.bsky.social
National Centre for Atmospheric Science @ncas-uk.bsky.social · 23d
High concentrations of fine particulate matter have been found in homes in Bradford, with families from deprived areas and ethnic minority backgrounds facing the highest levels of exposure.

Learn about the INGENIOUS project, and hear from @jacquirickard.bsky.social:

ncas.ac.uk/study-reveal...
Indoor air pollution breaches WHO-recommended thresholds - NCAS
Harmful levels of indoor air pollution have been found in homes in Bradford, by one of the largest and most detailed investigations to take place in the UK.
ncas.ac.uk

Reposted by Mattias Hallquist

cleanairlondon.bsky.social
Simon Birkett, Clean Air in London @cleanairlondon.bsky.social · 24d
#CleanAirEU | Inspiring speech by @ec.europa.eu about their evaluation of the National Emissions Ceilings Directive #NECD. Key lessons: strengthen implementation; tools exist; and we need action to achieve 2030 commitments eg ammonia and wood burning. Details environment.ec.europa.eu/topics/air/r...

Reposted by Mattias Hallquist, David Leclère, Martin Ehbrecht

drtomharris.bsky.social
Dr Tom Harris @drtomharris.bsky.social · 26d
Africa’s forests have joined the Brazilian Amazon and Australian forests in becoming carbon sources rather than sinks. Around 2010 the previous storage of our carbon emissions flipped, mainly through deforestation and degradation.
www.nature.com/articles/s41...
#climatechange #deforestation #Africa
Loss of tropical moist broadleaf forest has turned Africa’s forests from a carbon sink into a source - Scientific Reports
Africa’s forests and woody savannas have historically acted as a carbon sink, removing atmospheric carbon and storing it as biomass. However, our novel analysis reveals a critical transition from a ca...
www.nature.com

Reposted by Mattias Hallquist

mrsbettybowers.bsky.social
Mrs. Betty Bowers @mrsbettybowers.bsky.social · 28d
"My poll numbers have never been better."

Reposted by Mattias Hallquist

atmoschemyork.bsky.social
Wolfson Atmospheric Chemistry Laboratories @atmoschemyork.bsky.social · 28d
New work led by @atmoschemyork.bsky.social using the FAAM BAe 146 airbourne laboratory looking at fuel sulfur content in ship exhaust plumes...

www.theguardian.com/environment/...
Many ships found breaching pollution limits despite tighter controls
Researchers using aircraft to sample exhaust plumes say infringements persist – even in stricter zones
www.theguardian.com

Reposted by Mattias Hallquist

fembarnsfarsan.bsky.social
Stefan Jämtbäck @fembarnsfarsan.bsky.social · Nov 23
När två bilder säger mer än tusen ord.
Ulf Kristersson skakar hand med Hédi Fried. Ulf Kristersson, bredvid Jimmie Åkesson, på SDs partikongress.

Reposted by Mattias Hallquist, Jutta Haider

klimatfrida.bsky.social
Frida Berry Eklund @klimatfrida.bsky.social · Nov 23
Johan Rockströms dom över klimattoppmötet COP30 är glasklar. Ännu ett år av falskt hopp. Bara en ordnad och snabb utfasning av fossilekonomin och skydd av natur räknas.

Reposted by Mattias Hallquist

olaspannar.bsky.social
Ola Spännar @olaspannar.bsky.social · Nov 22
Klimatmötet slutade i en urvattnad resolution som inte ens nämner fossila bränslen. Israel har dödat minst två barn om dagen i Gaza sedan ”vapenvilan” trädde ikraft. USA säljer ut en femtedel av Ukraina i ett ”fredsförslag”. Statsministern håller hyllningstal på SD:s partikongress
a black and white cartoon of snoopy laying on top of a wooden house in the rain .
ALT: a black and white cartoon of snoopy laying on top of a wooden house in the rain .
media.tenor.com

Reposted by Mattias Hallquist

cs1891.bsky.social
Strömberg @cs1891.bsky.social · Nov 21
"Svenskarna vill ha skärpt klimatpolitik och är jättebesvikna på regeringen, säger Mikael Karlsson, docent i miljövetenskap vid Uppsala universitet."
www.dn.se/sverige/unik...
Unik överenskommelse på plats – kräver ny klimatpolitik
Miljörörelsen, fackföreningarna och landsbygdsrörelsen har gått samman och tagit fram ny klimatpolitik. Överenskommelsen samlar fem miljoner medlemmar.
www.dn.se

superhallq.bsky.social
Mattias Hallquist @superhallq.bsky.social · Nov 12
Bra att det uppmärksammas och flaggar för att vi måste göra något men om jag förstår rätt har kommunerna fram till 2030 att fixa detta
www.sverigesradio.se/artikel/ohal...

Reposted by Mattias Hallquist

jeannetteeggers.bsky.social
Jeannette Eggers @jeannetteeggers.bsky.social · Nov 10
Vilket hån mot oss alla.

Ulf "Nu får vi ordning på klimatet" Kristersson åkte till en Timbro konferens istället för ett klimattoppmöte

Timbro, som under åratal har tagit emot pengar av fossilindustrin och deras vänner. Och som vill att SD ska släppas in i värmen ännu mer.

Kan det bli mer cyniskt?
Kristersson skippar klimatmötet: Valde Timbro-konferens i Tallinn
Många världsledare deltog – men inte Sveriges • Skickade EU-ministern och kungen.
www.etc.se

Reposted by Peter Thorne, Mattias Hallquist, Andy Reisinger

lymecfs.bsky.social
Sebastiaan Deetman @lymecfs.bsky.social · Nov 7
Exactly! Which makes the real climate shift way scarier. Like shown by the data from svs.gsfc.nasa.gov/5452/

Reposted by Mattias Hallquist

dendrolund.bsky.social
Johannes Edvardsson @dendrolund.bsky.social · Nov 6
A new collaboration with the dendro group at the University of Gothenburg initiated. Together, we will study the establishment of woody shrubs in Greenland and tree growth variability in relation to ongoing climate change. 🌳💍🔬

superhallq.bsky.social
Mattias Hallquist @superhallq.bsky.social · Nov 1
Ja..vad säger man. Innan vår fossilregering så låg vi före Danmark. Men bra jobbat Danmark!
electricfelix.bsky.social Felix Hamer • electricfelix @electricfelix.bsky.social · Nov 1
“70.6% of all newly registered cars in October were electric cars, and among private car buyers, the figure was even higher: a full 88.9% chose electric cars. Aka: electric cars have become the standard choice in Denmark.” 🇩🇰

“VW Group strong, taking 8 out of 10 in the top 10”
⚡️⚡️⚡️
#alwaysbecharging

Reposted by Mattias Hallquist

electricfelix.bsky.social
Felix Hamer • electricfelix @electricfelix.bsky.social · Nov 1
“70.6% of all newly registered cars in October were electric cars, and among private car buyers, the figure was even higher: a full 88.9% chose electric cars. Aka: electric cars have become the standard choice in Denmark.” 🇩🇰

“VW Group strong, taking 8 out of 10 in the top 10”
⚡️⚡️⚡️
#alwaysbecharging

Reposted by Mattias Hallquist

sangasso.bsky.social
Santiago Gassó @sangasso.bsky.social · Nov 1
🧪
This has been tried for decades and if it worked, we would know by now.

www.theguardian.com/world/2025/o...
India trials Delhi cloud seeding to clean air in world’s most polluted city
Bharatiya Janata party launches first test flight as brown haze blankets city after Diwali – but experts decry ‘gimmick’
www.theguardian.com

superhallq.bsky.social
Mattias Hallquist @superhallq.bsky.social · Oct 31
Ja, så är det - förut kunde jag ha en förståelse för olika politik men idag kan man man välja att rösta på klok, korkat och ett parti med nazistiska rötter (idiotiskt)

Reposted by Mattias Hallquist

kjellrautio.bsky.social
Kjell Rautio @kjellrautio.bsky.social · Oct 30
Aversionen mot klimatarbetet är kortsiktigt och korkat…👇🏼
www.dn.se/sverige/kart...

Reposted by Mattias Hallquist

emmapersson.bsky.social
Emma Persson @emmapersson.bsky.social · Oct 30
Väldigt märkligt att det inte fick några konsekvenser för Forssell att hans son har varit aktiv i en våldsam nazistklubb:

Mohammad föll offer för nazivåldet: ”Ett ögonblick mellan mig och döden”

www.etc.se/inrikes/miss...
Mohammad föll offer för nazivåldet: ”Ett ögonblick mellan mig och döden”
Aktivklubb-aktivister gick bärsärk i Stockholmsnatten • Idag startar stora rättegången • Dagens ETC träffar offret som återvänt till Sverige efter traumat • Vill inte se gärningsmännen i domstolen.
www.etc.se