March 20, 2025|
AI
|9 months agoLake Geneva's Ecosystem Faces Critical Threat After Record Mild Winter
Scientists warn of unprecedented oxygen deficit in Lake Geneva as thirteen consecutive mild winters disrupt vital water mixing patterns
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Generated IllustrationKey Takeaways
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- Lake Geneva has experienced 13 consecutive winters without full water mixing
- Water mixed only to 110 meters depth out of total 309 meters in 2025
- Last complete water mixing occurred in 2012
- Lateral flows contribute to deep water oxygenation
By The Numbers
7.8°C
Minimum winter surface temperature 2025
1.5°C
Temperature increase above 1991-2020 reference period
2mg/l
Current oxygen levels in deep waters
4mg/l
Critical oxygen threshold for living organisms
They Said
"With less oxygen in the water, there is less and less viable space for living organisms"
"There is hope for the reoxygenation of deep waters"