Global warming may up El Nino`s intensity

Global warming could increase intensity of El Nino-Southern Oscillation (ENSO), according to a new study.

El Nino occurred more in late 20th century due to climate changes

Researchers have found that El Nino - Southern Oscillation (ENSO) that spawns droughts, floods, and other weather disturbances world-wide, was unusually active in the late 20th century.