Water is a central topic at Space, the international livestock fair, which will take place from Tuesday, September 15 to Thursday, September 17, 2026, in Rennes, France. As climate change brings more frequent and severe heatwaves, the management and availability of water have become critical issues for farmers, especially those in agriculture and livestock. At this year’s fair, experts and farmers will discuss innovative solutions to ensure sustainable water use and protect animal welfare. In Pléchâtel, a small commune in the department of Ille-et-Vilaine, the Demy brothers, who are organic milk producers, have managed to avoid the worst effects of this summer’s heatwaves. Their ability to maintain their dairy operations has been largely due to a system of hillside reservoirs, which have been in place for 25 years. These reservoirs store rainwater during wetter periods, providing a reliable water source during dry spells. The reservoirs are part of a broader irrigation cooperative that connects neighboring farms in the area. This cooperative model allows farmers to share resources and infrastructure, reducing individual costs and increasing efficiency. By working together, local producers have been able to create a resilient water supply system that supports their agricultural activities even in extreme weather conditions. The success of the Demy brothers and their neighbors highlights the importance of community-based solutions in agriculture. As the climate continues to change, such localized strategies may offer valuable lessons for other regions facing similar challenges. At Space, discussions around these practices will bring together farmers, scientists, and policymakers to explore how sustainable water management can be integrated into the future of farming.