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With the onset of hot weather, the risk of cyanobacteria proliferation in water bodies and around lakes is increasing.
What role does the lake play in your daily life? What issues concern you the most? Do you have confidence in the future […]
Observations made between December 2025 and February 2026 at point SHL2, located above the deepest point of the […]
The International Commission for the Protection of Lake Geneva Waters (CIPEL) is launching its call for scientific projects for 2026-2027, with a budget of […]
Good news for Lake Geneva! In 2024, monitoring of phytoplankton, the tiny algae essential to life […]
In the 1960s and 1970s, swimming was prohibited in certain areas of Lake Geneva due to the poor quality of the water [...].
"When the wind changes, you have to know how to adjust your sails." At our annual plenary session, the state of [...]
The quality of treated water in the Lake Geneva basin has improved, but when it rains heavily, large volumes of wastewater can be discharged [...].
We are pleased to announce that we have found a new site for our offices, just a stone's throw [...].
Are you between 13 and 16? Take a trip like a real reporter! Explore [...]
New CIPEL campaign: Protecting Lake Geneva while promoting leisure activities CIPEL launches its summer campaign to promote [...].
CIPEL has just published the results of six measurement campaigns carried out by INRAE in Thonon, between March and [...].
Are you between 13 and 16 years old? Are you curious to find out where the water you drink comes from, where [...]
Honored to have been invited as a speaker at the 22ᵉ international EURO-RIOB (International Network of Basin Organizations) conference this week [...].
CIPEL has just published its latest limnological bulletin covering the winter of 2024-2025. This document highlights the evolutions [...].
CIPEL - A 60-year commitment to protect Lake Geneva [gallery columns="1" size="full" ids="5723,5719,5720,5721,5722"]
Mixing ensures optimal reoxygenation of deep waters. However, since 2012, this phenomenon has been partial. This winter, the masses of [...]
💧 Plastic pollution of aquatic environments is a worrying phenomenon that has been observed since the 1970s. With global production [...]
🔍 Lake Geneva under surveillance: a new record? 🔃 Every winter, an essential natural phenomenon is played out in [...].
Tribute to Jean Pelletier, deceased January 14, 2025 It is with deep gratitude that we pay tribute to Jean [...].
The International Commission for the Protection of the Waters of Lake Geneva (CIPEL) has published its annual scientific report, based [...].
"Nothing is permanent, except change. These words of Heraclitus take on their full meaning this year for CIPEL [...].
Thousands of plastic particles per m2 The study revealed an average of 7,600 particles of microplastics (0.3 mm [...]).
☝️ Did you know that the legendary Jacques Piccard created a tourist submarine in 1964 to explore the depths of Lake Geneva?
Following the recent bad weather, several wastewater treatment plants (WWTPs) in Valais were severely affected. Although the majority of [... ]
Interview with Marc Babut conducted in 2021. Marc Babut, who was president of CIPEL's Scientific Council from 2018 to [...].
This winter, once again, the mixing of the waters of Lake Geneva was incomplete. Data from CIPEL, the French [...]
A renewed commitment to Lake Geneva 🤝 On Tuesday November 7 in Nyon, CIPEL held an important meeting [...].
The unbridled spread of the Quagga mussel in Lake Geneva is having a significant impact on its aquatic ecosystem and its [...].
Newly appointed to this key position following an international selection process, Nicole GALLINA takes over from [... ].
For the 10th year running, the waters of Lake Geneva have not been fully mixed: what are the consequences for the [...].
The 60th plenary session of CIPEL was held in Prévessin-Moëns on November 4, with the participation of elected representatives, experts [...].
The water temperature at the lake's surface did not exceed 21.1°C during the summer of 2021, and the [... ]
The water temperature at the lake's surface rose sharply compared with last month. It was 17 [...]
CIPEL and two NGOs set up a prevention campaign on the beaches of twenty-one towns on the shores of Lake Geneva. [...]
Quagga mussels have been expanding rapidly in Lake Geneva since 2015. Its development should stabilize within the next 4 to 5 [...].
Summer's here and what better way to cool off than with a dip in the waters of Lake Geneva?
The surface waters of Lake Geneva continue to warm (around +2°C compared with the April reading). [...]
Once upon a time, there was a lake... You tell the rest. Mysterious immensity, majestic mirror, unchained soul... nothing [...].
SPRING: Warm-up and restart of aquatic life (April-June) From spring onwards, the monitoring program for [...].
The natural environments of Lake Geneva CIPEL has just put together a beautifully illustrated exhibition to raise awareness of the [...].
February 6, 2021: The mixing reached a depth of 135 m. Compared with January, the mixing layer has [...]
We would like to inform you of the publication of a new limnological bulletin for Lake Geneva. It presents data on temperature, transparency and [...].
Reedbeds border the lake in only a few places. Composed of large herbaceous plants - such as the common reed [...]
