Swiss village Grimisuat caps population growth due to water shortages

The Swiss village of Grimisuat, perched above Sion in the Valais canton, has implemented a strict population cap of 5,000 residents due to dwindling water resources. This decision, driven by the intensifying effects of climate change on the region, highlights growing concerns about water availability in Switzerland.

Grape grower Marie-Bernard Gillioz, who began her career 40 years ago, has witnessed firsthand the increasing need for irrigation. "In the past, I never had to water before flowering, but today I even have to water multiple times," she stated, illustrating the changing climate reality. The area, known for its sunny slopes, is experiencing hotter summers, exacerbating the water shortage.

Grimisuat faces particular challenges as it lacks its own water source and relies on purchasing water from neighboring communities. This dependence is costly and precarious. The village's population has more than doubled since 1980, partly due to the growth of the Lonza pharmaceutical company in Visp, but this expansion is now being deliberately curtailed.

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In the past, I never had to water before flowering, but today I even have to water multiple times.

This decision makes Grimisuat potentially the first municipality in Switzerland to formally set a population ceiling. It echoes sentiments from initiatives like the SVP's "10 Million Switzerland" proposal, which aimed to curb immigration. The village president, Raphaël Vuigner, a former banker, is leading the effort to "restructure" the municipality, suggesting a more business-like approach to managing its resources and growth.

As Switzerland grapples with the implications of a potential 10 million population, Grimisuat's proactive measure to manage growth based on resource limitations could serve as a precedent for other communities facing similar challenges.

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I wanted to restructure the municipality, just as I did for UBS for years as a manager.