Risk Frontiers, Andrew Gissing has contributed his knowledge about flood risk management in the development of a World Health Organisation (WHO) guideline published early this morning in New York on the prevention of drowning. Drowning takes an estimated 360,000 lives globally each year and is a hidden public health crisis. The WHO guideline aims to help public officials globally by providing them a framework of interventions to consider and implement. The full guideline can be found at http://www.who.int/violence_injury_prevention/drowning/drowning_prevention_guide/en/