"The objective of this paper is to highlight the importance of early warning dissemination and communication, one of the four pillars of multi-hazard early warning systems (MHEWS), which ITU is leading with the newly defined executive action plan for the Early Warnings for All initiative. The key objective of the paper is to point to the opportunities offered by the growing availability and reach of communication channels, in particular mobile (cellular) networks and services, which make it possible to reach communities at risk, warn about an imminent disaster and provide people with actionable advice. The paper will highlight some key advantages of an effective emergency warning system using mobile networks. It proposes the use of cell broadcast as a minimum national early warning system. New regulations in Europe are examined to show how regulatory measures can help speed up the adoption process. An overview of legislative approaches on MHEWS adopted by 33 countries is given in the Annex, with examples of regulatory measures. It is argued that the availability, adoption, and usage of mobile network services is a critical component for the successful implementation of the ambitious Early Warnings for All initiative. The intention is to initiate discussions and drive coordination between different stakeholders: government policy-makers in emergency management, hydrometeorology and telecommunication; mobile network operators; international organizations; community organizations; and donors of international humanitarian funding. Finally, we highlight the contribution that ITU can make to capitalize on the opportunities of technology and strengthen the capacity of governments to implement and use nationwide alerting systems to save lives." (Page 1)