Mark Parrington

@sebsteinig.bsky.social @laurencerouil.bsky.social @sbasart.bsky.social @wmo-global.bsky.social @fao.org @eumetsat.int @esa.int @aerosolwatch.bsky.social @igacproject.bsky.social @bburnedscience.bsky.social @euspa.bsky.social

#CopernicusAtmosphere day-to-day distribution & intensity of global #wildfires #biomassburning + corresponding smoke aerosol optical depth from 1 January to 30 November 2025.

Read our analysis of the fire emissions monitored around the world this year: atmosphere.copernicus.eu/2025-sees-in...

🔥 From record wildfire emissions in Europe to large-scale wildfires in Canada, California and around the Mediterranean, #CopernicusAtmosphere data show how wildfires throughout 2025 degraded air quality far beyond where the fires burn.

Read our article: atmosphere.copernicus.eu/copernicus-w...

@jmccartygeo.bsky.social @mattwjones.bsky.social @centrewildfires.bsky.social @ijwildlandfire.bsky.social @cwiedinm.bsky.social @guidovanderwerf.bsky.social @wildfirecollective.bsky.social @wildfirecommons.bsky.social @drtels.bsky.social @afe-fireecology.bsky.social @dr-firelady.bsky.social

Overall global fire emissions for November and January-November were the lowest of the past 23 years of the #CopernicusAtmosphere Global Fire Assimilation System (GFAS) v1.2 dataset, based on Terra and Aqua MODIS🛰️active fire observations.

Global #wildfires #openburning intensity & emissions for November 2025 in #CopernicusAtmosphere Monitoring Service GFAS data ads.atmosphere.copernicus.eu/datasets/cam.... Mostly seasonal tropical fires + notable N Australia bushfires early in the month @copernicusecmwf.bsky.social @ecmwf.int

Yesterday, we hosted the Showcase of European capabilities in machine learning in weather forecasting at our headquarters in Reading, UK.

This concludes our 50th anniversary events, which also saw us gather with colleagues at our sites in Germany and Italy earlier this year.

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🌏 New #C3S dataset! The first Comprehensive Upper-air Observation Network dataset (1901–present) from balloon ascents is now available in the Climate Data Store. Discover this invaluable resource for climate science & ERA6. Go to #CDS 👉
cds.climate.copernicus.eu/doi/10.24381...

#CopernicusClimate

With the 2025 ozone hole now closed, our latest #AskAScientist video features Johannes Flemming explaining why the Antarctic ozone hole reappears annually, when it might close for good & how global action has made a difference.

Find out more ⬇️

#CopernicusAtmosphere

🌍 #CleanAirEU |Bonn
Atmo France était présente pour promouvoir une approche intégrée air–climat–énergie
🔹Forte mobilisation pour accélérer l’action locale
🔹La modélisation basée sur les données terrain = outil clé
🔹 Pas de révision immédiate de la directive NEC = opportunité manquée

Birds escaping bush fire at Masai Mara National Park, Kenya. Credit: Marie Lemerle / Alamy Stock Photo

NEW – Guest post: Why carbon emissions from fires are significantly higher than thought | Prof Guido van der Werf

Read here: buff.ly/8xbbdFn

#Wildfire smoke impacts on #airquality from the recent @easac.bsky.social report easac.eu/publications... presented by @dr-firelady.bsky.social in the Clean Air Forum session on super pollutants & extreme events #CleanAirEU @ecmwf.int @copernicusecmwf.bsky.social

Day 2 of the 5th EU #CleanAirEU Forum focuses on air quality and policy. Freely available #CopernicusAtmosphere data and tools help to understand air quality impacts in Europe and design effective policies.

CAMS air quality policy tools: atmosphere.copernicus.eu/policy-tools

@ecmwf.int
#CleanAirEU

Hole in Antarctic ozone layer shrinks to smallest since 2019, scientists say EU’s Copernicus monitoring service hails ‘reassuring sign’ of progress observed this year in hole’s size and duration

Hole in Antarctic ozone layer shrinks to smallest since 2019, scientists say

Amazing science, so much detail from Earth Observations, Eloise Marais reminds us that the cloudiness of the UK, makes it one of the biggest challenges for extracting atmospheric chemical information.

Day 1 of the 5th EU #CleanAirEU Forum was packed with discussions on how to improve air quality across Europe.

@ecmwf.int

The 2025 Antarctic #OzoneHole closed today, 1 Dec. – the earliest since 2019 and the smallest & shortest-lived in 5 years. Do you know how #CopernicusAtmosphere tracks ozone hole development? Or how global efforts are making a difference?

Find out here: atmosphere.copernicus.eu/smallest-and...

Investigating fire-induced ozone production from local to global scales Abstract. Tropospheric ozone (O3) production from wildfires is highly uncertain; previous studies have identified both production and loss of O3 in fire-influenced air masses. To capture the total ozo...

My last MIT student, Joe, explored what controls the ozone formed in fire plumes. His paper is out today in ACP. Happy Thanksgiving! acp.copernicus.org/articles/25/...

🌤️ Europe’s air is improving, but 180,000+ EU deaths in 2023 were linked to PM2.5 above WHO levels.
95% of city residents still face unhealthy air.
More in our new EEA assessment: www.eea.europa.eu/en/newsroom/...

Sentinel-4 & Sentinel-5 features will be demonstrated at the 5th Clean Air Forum, highlighting their vital role in CAMS monitoring of key air quality trace gases & aerosols, offering timely, high-res data over Europe.

🔗 atmosphere.copernicus.eu/sentinel-5-m...

#CopernicusAtmosphere #ECMWF

Satellite imagery shows multiple #fire clusters in #Azerbaijan and #Armenia generating a broad, merged smoke layer. The thick regional haze indicates elevated particulate loads and significant cross-border #atmospheric transport. 🔥🌬☁️🌀🌏

#AirQuality 😷

🛰 #NASA
✂️Visualized @zoom.earth

Some Europe-wide animations annual mean changes in air pollutants (NO2, PM2.5 & ozone) over the past 10 years using #CopernicusAtmosphere regional reanalysis in this thread bsky.app/profile/cope...

Sentinel 2C satellite image of Erta Ale, Ethiopia, showing the crater and a plume of gas/ash, on 23 November 2025

[CORRECTED]
Volcanic activity at Erta Ale, Ethiopia, in this Copernicus Sentinel 2C satellite image from 23 November.
Combination of visual channels + SWIR

Our #CopernicusAtmosphere Assessment Report on European Air Quality shows that levels of key pollutants NO₂, PM2.5 & PM10 were lower in 2024 than most of the previous ten years. At the 5th EU Clean Air Forum, stakeholders are working together to advance clean air policy.
@ecmwf.int

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Updated animation of #CopernicusAtmosphere daily mean PM2.5 surface concentration forecasts showing development of Indo-Gangetic Plain #AirPollution between 1-27 November. More info/#OpenData access: ads.atmosphere.copernicus.eu/datasets/cam... #airquality @copernicusecmwf.bsky.social @ecmwf.int

Updated animation of #CopernicusAtmosphere daily mean PM2.5 surface concentration forecasts showing development of Indo-Gangetic Plain #AirPollution between 1-27 November. More info/#OpenData access: ads.atmosphere.copernicus.eu/datasets/cam... #airquality @copernicusecmwf.bsky.social @ecmwf.int

Dark blue background with two thumbnail images representing the covers of two publications with their titles. Text: “’Fifty years of meeting users’ needs’ and ‘Machine learning for numerical weather prediction’”

The final two papers in our series of publications to mark ECMWF’s 50th anniversary are now available:

➡️ Fifty years of meeting users’ needs (4.17 MB) www.ecmwf.int/sites/defaul...
➡️ Machine learning for numerical weather prediction (2.82 MB) www.ecmwf.int/sites/defaul...

🌍 Discover how ECMWF’s 2025 @codeforearth.bsky.social projects harnessed #CopernicusAtmosphere and #CopernicusClimate data to drive open-source innovation in Earth system modelling.
Read the articles:
🔴 climate.copernicus.eu/code-earth-2...
🔵 atmosphere.copernicus.eu/ecmwf-code-e...

📉 Global annual total estimated emissions of total carbon from biomass burning from 2003 to 2025 – CAMS

📉 High PM2.5 levels across the Po Valley on 12 November – @adamplatform.bsky.social

📉 Biomass burning aerosol forecast initiated on 6 September – Ernesto Barrera / @aemet.es

An impressive view of the long SO₂ plume from the #HayliGubbi #volcano eruption in #Ethiopia.
The #Copernicus #Sentinel5P map of Nov. 25th shows its trajectory stretching from #Africa all the way across #India and #China for more than 6000 km. #AirQuality