All the contents of BRGM, the French geological survey, about climate change.

Appreciated by fish and well-known to anglers, thermal refuges in rivers are precious for aquatic fauna. A large number of thermal refuges have an invisible origin: groundwater.
Article
Thermal refuges in rivers: when groundwater saves fish from overheating
28 May 2026
Underwater spring in the Thau Lagoon (source of the Vise) (Hérault).
Article
The Thau inversac: when a submarine spring absorbs salt water and threatens groundwater
12 May 2026
Déployer des outils souverains pour visualiser le territoire et simuler ses évolutions, notamment dans un contexte de changement climatique : c'est l'objectif du programme JUNN, lancé en 2026 dans le cadre de France 2030.
News
BRGM partners with JUNN to help develop digital twins for French regions
11 May 2026
The CoCliCo (Coastal Climate Core Services) platform.
Reference, completed project
CoCliCo: an open-access web platform to inform decision-making on coastal risks
1 Apr 2026
Clay shrinkage-swelling exposure map 2026.
News
Clay shrinkage and swelling: changes to the national exposure map
1 Apr 2026
Schéma directeur Développement durable & responsabilité sociétale et environnementale 2025-2030 du BRGM.
News
Sustainable development and CSR master plan: BRGM sets out its objectives for 2030
24 Mar 2026
Hydroxydes doubles lamellaires.
Press release
BRGM Invest acquires a stake in start-up CaliCO2
6 Nov 2025
Tuff waterfalls at Baume-les-Messieurs (Jura, 2022).
News
BRGM joins the French National Water Committee
2 Oct 2025
The drought indicator that predicts shrinkage and swelling of clay soils currently shows a sharp increase in the second half of the 21st century, according to IPCC assumptions RCP 4.5 (moderate emissions scenario) and RCP 8.5 (high emissions scenario).
Article
Climate change: an indicator to predict the risk of cracks appearing in house walls
4 Sep 2025
The town of Sète, between the Etang de Thau and the Mediterranean (Hérault, 2007).
News
The flow-reversal (inversac) phenomenon of the Thau lagoon explained, opening up the prospect of better water management
26 Aug 2025
The Ray-Pic waterfall, Ardèche
Reference, completed project
Explore2: simulating possible future water resource scenarios in France
20 Aug 2025
Olivier Jacob, Prefect, Director General for French Overseas Territories.
Interview
Olivier Jacob: "BRGM advances scientific research for the benefit of French overseas territories"
8 Aug 2025