05:37
Going with the Flow: Forecasting El Nino Events
Once an El Nino event is underway, scientists have a good idea of how it's likely to behave over the subsequent six to nine months. But predicting the onset of such events in advance has proven to be very difficult.
04:28
Going with the Flow: El Nino
El Nino is marked by the appearance from time to time of warm water in the central and eastern Pacific Ocean. The end result of the evaporative process that follows is excessive rainfall.