Every year tens of millions of tonnes of Saharan dust are dispersed across the globe, turning the sky orange and sometimes making the rain muddy. Step by step researchers are discovering the many ways in which dust outbreaks affect clouds, precipitation and weather forecasting systems.

Read more about the #Copernicus analysis of fire emissions, smoke & air quality impacts for Argentina, Chile & Australia in our recent article at atmosphere.copernicus.eu/southern-hem... @copernicusecmwf.bsky.social @ecmwf.int

Analysis of #CopernicusAtmosphere fire emissions data clearly highlights the extreme nature of the recent devastating fires in Argentina/Chile with total estimated emissions for 2026 so far (1 Jan-10 Feb) exceeding all annual totals since 2003 for Chubut province🇦🇷 & most years for Biobío province🇨🇱

Looking back at the extreme Iberian Peninsula #wildfires of August 2025, resulting in the highest EU+UK total fire emissions of the past 23 years. A short summary by me and Joe McNorton from the @ecmwf.int autumn newsletter www.ecmwf.int/en/newslette... #iiff #incendiosforestales

"In the past, many of these [human-caused] fires would have burned out or been quickly contained. Today, prolonged droughts, record heat & volatile weather amplified by climate change mean even accidental fires are more likely to escalate into uncontrollable infernos." Excellent piece 🔥🌏

Increase in total estimated emissions from Canadian #wildfires slowed through 2nd half of June but 2025 already a quite extreme year with continuing fires + two months of summer to come. #CopernicusAtmosphere GFAS data based on MODIS🛰️ active fire obs ads.atmosphere.copernicus.eu/datasets/cam...

Beautiful visualization of wildfire and Saharan dus aerosols.

Canada’s wildfire smoke has now made it to Europe! Gives you a sense of how massive these fires are!

"'A global red alert' -- The destruction of the world’s forests reached the highest level ever recorded in 2024, losing an area the size of Italy to agriculture, fires, logging & mining, according to analysis from the University of Maryland." 🌏 www.theguardian.com/environment/...

Pleased to announce our new paper on "Modelling of atmospheric variability of gas and aerosols during the ACROSS campaign 2022 in the greater Paris area: evaluation of the meteorology, dynamics and chemistry" out on ACP 🎉 and accessible at: doi.org/10.5194/acp-... #AtmosphericScience #heatwave

First #wildfires north of the #ArcticCircle for 2025 observed by NASA Aqua MODIS visible 🛰️ imagery, with Terra+Aqua MODIS active fire obs, in Russia's Sakha Republic on 26-29 April go.nasa.gov/4iAgev2 (images centred on 67.6N, 134.8E) #ArcticFires

Not only are more forests/trees around the world experiencing mortality as a result of increasing stressors, but recovery is impaired as a result of increasing temps, drought, other climate-related impacts. Positive feedback loop -- as forests go, so do we. 🌏

New JGR paper out now 🔥 ! This study highlights the need for an accurate representation of aerosol absorption optical properties to capture their spatial variability from the June 2023 Canadian wildfires further transported over Europe. #wildfire #canada #browncarbon #blackcarbon

At least 30 people were killed and more than 48,000 hectares, or 119,000 acres, of land was burned in fires that raged over the last week of March in South Korea, media reported. The disaster is reportedly South Korea’s largest recorded wildfire as the blaze raged on for several days. Read:

Curious about climate patterns? The new ERA Explorer app lets you compare 85 years of climate data worldwide. Analyse climatological averages at any map point or explore month-by-month data.Dive deeper with ERA Explorer! era-explorer.climate.copernicus.eu?lat=50.86&ln... #C3S #beautifuldata

New list for people working on #wildfire modelling and observations via @emryslda.bsky.social bsky.app/profile/did:...

🌍 Quiz Time 🧠 How much do you know about the role of clouds and aerosols in climate change? Test your knowledge with our quiz: 🔗 certainty-aci.eu/quiz/ @horizoneu.bsky.social

Forecasters are warning of above normal wildfire season in NM. Meanwhile, federal cuts, including those that would leave a third of the state unmonitored by wildfire dispatch, could make for a devastating fire season, experts told us. buff.ly/qATa1aE #nmfire #wildfire

Hi everyone! Our new paper on the aerosol spectral optical properties in the Paris urban area and its surroundings during summer 2022 from ACROSS surface observations is out on ACP 🎉! The article is accessible at: acp.copernicus.org/articles/25/... #aerosol #CRI #urban #rural #biomassburning