Snow: Olympians and scientists explain why it matters.

Olympians and scientists say snow affects winter sports, water supplies and wildlife, and experts study snowpack, crystal types and melting behavior to improve forecasts.

Olympians and scientists are highlighting how complex and varied snow can be. At the 2026 Winter Olympics athletes described how snow conditions shape competition and equipment choices. Climatologists note that snowpack is important for water supply, hydropower and ecosystems. Researchers and snow experts study snow and work to improve forecasts and understanding of snowpack behavior. What we know about snow: - Snow is frozen water that takes many forms and influences surface conditions, from light powder to wet slush. - Snowpack can create a subnivean layer that insulates small mammals and helps moderate ground temperature. - Snowmelt provides drinking water, supports hydropower and helps irrigate crops in many regions. - Rapid or early melt can increase flood risk, and movements within snow layers can produce avalanches. - For skiing and other snow sports, temperature, water content and crystal shape affect ski choice, wax and technique, and warm slushy snow changes how athletes must ski. Summary: Snow influences winter sports, water resources and wildlife, and its timing and characteristics can protect or challenge people and ecosystems. Researchers, climatologists and sports teams continue work to better understand snowpack, snow properties and forecasting so they can describe conditions more accurately.