0
0
Europe is experiencing significantly more desert dust blowing in from North Africa — a trend scientists say is accelerating and already reshaping both public health risks and the continent’s clean‑energy output. Researchers at the Paul Scherrer Institute (PSI) in Switzerland report in Nature that desert dust levels have risen by 10 to 25 percent over the past decade, with long‑term evidence from Alpine ice cores showing that concentrations have more than doubled over the last 150 years.
Intensifying Storms, Expanding Deserts
The increase is not due to more storms, the PSI team notes, but to stronger individual storm events capable of lifting and transporting larger volumes of Saharan dust. Climate change is also expanding desert regions such as the Sahara, while shifts in atmospheric circulation are sending more powerful winds northward toward Europe.
The result is familiar to many residents: yellowish haze, reddish sunsets, and a fine layer of dust on cars and windowsills.
Health Impacts: A Growing Concern
The researchers warn that the rise in desert dust has direct consequences for vulnerable groups, especially people with heart disease, lung conditions, and older adults.
Studies show that on days with high dust concentrations, deaths from heart attacks and respiratory distress increase. Short‑term exposure is clearly linked to acute health events, though scientists say long‑term effects — such as asthma, chronic bronchitis, or pneumoconiosis — still require more research.
To reduce risks, the PSI team proposes new warning systems, similar to those used for urban particulate pollution or pollen. Such alerts would allow at‑risk individuals to limit outdoor activity and stay indoors when dust levels spike.
Solar Power Takes a Hit
The dust surge also affects Europe’s solar energy production. Desert dust blocks sunlight as it travels through the atmosphere and settles on solar panels, reducing their efficiency.
Energy providers could use early warnings to adjust grid operations, temporarily increasing output from other power plants to maintain stability when solar generation drops.
Southern Europe Most Exposed
The PSI study shows a stark regional divide. Southern Europe — from Greece to Italy, Spain, and Portugal — faces average dust concentrations of 5.3 micrograms per cubic meter, more than double the levels in Central and Northern Europe, which average 2.1 micrograms.
Scientists can distinguish desert dust from urban or industrial pollution by analyzing aluminum concentrations, a clear marker of mineral dust from arid regions.
A Changing Climate, A Changing Atmosphere
The findings highlight how climate change is reshaping not only temperatures and weather patterns but also the composition of the air Europeans breathe. With stronger Saharan winds and expanding desert landscapes, researchers expect dust events to become more frequent and more intense — making monitoring systems and public‑health guidance increasingly important.
- source: ttz.at/picture: pixabay.com
