Information such as this can prove valuable to societies that are prepared to use it. Climate related forecasts can be used every year to enhance societal well-being and societal productivity. A response to this question requires speculation. After the 1972-73 event, it became associated with the collapse of Peru s anchovy fishery and a disruption in agriculture as farmers in the United States shifted their planting from wheat to soybeans, a second choice to anchovy fishmeal as a animal feed supplement. Meanwhile, little attention was given to any other part of the ENSO cycle.
Arid conditions return to the western coast of South America from Peru to Chile.
There are composite maps that have been constructed suggesting that there are certain areas around the globe where the regional climatic conditions are linked to SSTs in the central and eastern equatorial Pacific. The use of composite impacts maps or single event impacts maps carries with it different problems. For example, composite maps provide averages of impacts of ENSO events, where as the single event impacts maps shows only one set of the many possible sets of impacts that could accompany an ENSO extreme event. Also, the northern tier of North America becomes relatively colder and wetter in winter. The southern tier of the US becomes relatively warmer and drier.