Why do we need observations? Forecasts rely on data observed from all over the planet. Every economic decision, every infrastructure investment, every crop planting schedule, every health, water and energy management plan, and every supply-chain adjustment all depend on WMO’s global observing and forecasting backbone. The risks of extreme weather to communities and economies increase as rising temperatures fuel more intense heatwaves, extreme rainfall and rapidly intensifying tropical cyclones. Earth observations provide the data we need to understand these risks and make better decisions to protect lives, communities and economies. Only by observing today, can we protect tomorrow. Find out more this #WorldMetDay on 23 March. Be part of the unveiling of the WMO #StateOfClimate 2025 report.