Climate change is expected to have profound impacts on water resources and natural hazards in Central Asia and South Caucasus. This has serious implications for the management of water resources and natural hazards in both regions.

This nexus brief focuses on the phenomenon of the El Niño–Southern Oscillation (ENSO) and in particular on the 2015/2016 El Niño event, which faded out in May 2016 but has impacts and effects on environmental and societal systems that will extend well into 2017.