El Niño - La Niña

The following diagrams show the ENSO Index, which describes the anomaly of the temperature in the East Pacific. The events of the warm El Niño (red) and the cold La Niña (blue) are clearly visible.

The last 10 years:

El Niño and La Niña of the last 10 years
(Click for a larger view)

Von 1950 bis heute:

El Niño and La Niña since 1950
(Click for a larger view)