Holger Frey

This technical guidance document provides a structured and comprehensive approach to hazard assessment underpinned by latest scientific understanding. It has been produced as a resource for international and national agencies, responsible authorities and private companies.

This brief focuses on El Niño–Southern Oscillation phenomenon and the 2015/2016 El Niño event in particular, the environmental and societal impacts and effects of which will extend well into 2017.