A dense haze, known locally as Calima, blanketed Spain’s Canary Islands on 17 December 2024 following Storm Dorothea. Strong winds carried suspended dust from the Sahara Desert, significantly impacting air quality and visibility, particularly on Lanzarote and Fuerteventura.

Satellite Image of Canary Islands
Canary Islands, Spain. Credit: European Union, Copernicus Sentinel-2 imagery

According to data, the daily concentration of particulate matter in these areas surpassed levels recommended by the World Health Organization, raising health concerns for local communities. The phenomenon, visible in this Copernicus Sentinel-2 satellite image, shows the recurring challenges posed by transcontinental dust transport.

The Copernicus Atmosphere Monitoring Service offers crucial daily updates and forecasts on the movement of atmospheric pollutants, providing valuable insights for authorities to protect public health and enhance preparedness.

Featured image credit: European Union, Copernicus Sentinel-2 imagery

Image: this data visualisation, produced using C3S data, illustrates the surface air temperature anomalies for May 2025 across part of the Northern Hemisphere
Image of the day: Global temperature hovers near 1.5°C in May 2025Facts

Image of the day: Global temperature hovers near 1.5°C in May 2025

May 2025 was the second warmest May ever recorded globally, with an average surface air temperature of 15.79°C – 0.53°C above the 1991–2020 average –…
Muser NewsDeskMuser NewsDeskJune 17, 2025 Full article
Image: Artist's view of EarthCARE satellite on board a Falcon 9 launch vehicle
EarthCARE satellite to probe how clouds affect climateClimateNews

EarthCARE satellite to probe how clouds affect climate

By Patrick T. FALLON with Juliette COLLEN in Paris | AFP Vandenberg Air Force Base, United States (UPDATED) - A rocket carrying a sophisticated satellite…
SourceSourceMay 29, 2024 Full article
Image
Gas strategy fuels concerns about the cost of energyClimate

Gas strategy fuels concerns about the cost of energy

By Dani Alexander, UNSW in Sydney The Australian government's gas strategy has stoked old tensions between advocates of fossil fuels and those who want our reliance on…
SourceSourceMay 25, 2024 Full article