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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 [...]).
With the onset of hot weather, the risk of cyanobacteria proliferation in water bodies and around lakes is increasing.
☝️ 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 [...]
