NOAA
Noaa: The Atmosphere During El Nino
This page explains in detail what happens in the atmosphere during El Nino.
NASA
Nasa Earth Observatory: The Color of El Nino
This article explains the effects El Nino has had on different climates and natural disasters throughout the world.
NASA
Nasa Earth Observatory: El Nino's Extended Family Introduction
This article discusses cycle of global weather patterns and its relation to El Nino. Learn how global weather patterns are being tracked by satellites and how scientists are predicting weather patterns up to a year in advance.