1. The document discusses various early warning systems and the importance of people-centered approaches.
2. It provides details on Hurricane Katrina, including losses of $125 billion and 1,280 victims, and the challenges of issuing effective early warnings.
3. The Tonga RANET warning system is described, which aims to maintain connectivity during severe weather events in Tonga.
4. Mozambique's flood warning system is also mentioned, which has modules to disseminate warnings.