U.N. plan would help warn people in vulnerable countries about climate threats
About half the world isn't covered by early warning systems that send alerts for weather emergencies. The worst is in developing countries, which have been hit hardest by global warming.
The United Nations announced a plan Monday to ensure people in developing countries can be warned ahead of time when there's a risk of climate-related hazards like extreme storms and floods.
The initiative is part of a broader effort. About half the world isn't covered by multi-hazard early
