Welcome to Our Future Water's newsletter on "Climate Resilient Water Supply: The Future of Water Security." This edition is focused on the growing importance of resilient and adaptive water supply strategies amid escalating environmental challenges. These challenges, such as climate change, rapid urbanization, and burgeoning population demands, are putting immense pressure on our crucial water resources. These resources not only sustain life but also power economic activities and support food and energy production. Embracing a Climate Resilient Water Supply approach is imperative in our rapidly changing world. This approach champions efficient resource usage, system resilience in the face of climate variations, and social fairness. It is an essential strategy for safeguarding health and prosperity and ensuring environmental sustainability, particularly in regions wrestling with resource scarcity and inequality. This newsletter edition explores strategies and innovative practices to manage water systems more efficiently, with a focus on climate-resilient infrastructure, predictive modeling for agricultural water management, and water recycling and groundwater replenishment. These groundbreaking technologies and practices are key to steering us towards a more resilient, equitable, and sustainable future under the Climate Resilient Water Supply approach.