The text explains what early warning systems are and why they are important for climate action and disaster risk reduction. It describes how these systems collect and analyze data to detect hazards such as storms, floods, heatwaves, or droughts and provide timely alerts to governments and communities. This allows people to prepare, evacuate, or take protective measures before disasters occur. The article also highlights that effective early warning systems can save lives, reduce economic losses, and strengthen resilience to climate change, especially in vulnerable regions.