Warning dissemination and communication
The growing frequency and intensity of natural hazards, driven by climate change, remind us of a stark reality: the world is not on track to meet climate targets, and disaster risks are rising. To meet these challenges, the UN Secretary-General launched the Early Warnings for All (EW4All) initiative in 2022, with the ambitious goal of protecting every person on Earth through an early warning system (EWS).
EWS are a proven and effective climate adaptation measure that are estimated to provide a tenfold return on investment. ITU leads the initiative's Pillar 3, on warning dissemination and communication, with support from the GSMA, Microsoft, Google, and other partners.
Watch this video to learn about the life-saving potential of mobile early warning systems
Our mandate is to ensure that alerts reach all people at risk—timely, reliably, and at scale. This means strengthening last-mile connectivity, integrating multi-channel communication, and ensuring that warnings are trusted, understood, and actionable, especially for vulnerable groups.
As there is no one-size-fits-all approach in disseminating warnings, ITU promotes a multi-channel approach that sends alerts over different communication channels: radio, television, social media, sirens, mobile phones, satellite, and others
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ITU endorses an inclusive, people-centered approach that uses existing community-based infrastructures and locally-led feedback mechanisms to ensure messages are understandable and actionable.
With resources tightening and risks multiplying, technology can serve as a force multiplier. Through smart use of AI, geospatial analytics, and digital networks, countries can better identify risk hotspots, enable anticipatory action, and deliver alerts that are more targeted, inclusive, and timely.
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Our progress in figures
Note: Figures above account for the support provided by ITU from 2023 to Q3 2025.
As of third quarter of 2025, EW4All National Consultative Workshops have been conducted in 30 countries, signifying the start of the countries' EW4All journey. We are actively engaging in: Mozambique, Liberia, Bangladesh, Somalia, Haiti, Mauritius, Madagascar, Comoros, Nepal, Tonga, Kiribati, Solomon Islands, Niger, Uganda, Tanzania, Sao Tome, Capo Verde, Guyana, Djibouti, Macedonia, Albania, Montenegro, Antigua & Barbuda, Cambodia, Chad, Ecuador, Ethiopia, Fiji, Guatemala, and South Africa (30 countries).
We are in the process of engaging in: Antigua & Barbuda, Cambodia, Chad, Ecuador, Ethiopia, Fiji (6 countries)
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About EW4All
EW4All is an initiative that aims to deliver effective and inclusive multi-hazard early warning systems. It is built on four pillars co-led by the UN Office for Disaster Risk Reduction (UNDRR), the World Meteorological Organization (WMO), the International Telecommunication Union (ITU), and the International Federation of Red Cross and Red Crescent Societies (IFRC):
Watch this introductory video to learn more about the UN Secretary General's EW4All initiative
Visit the main
EW4All website.