The truth is, no one knows what really causes El NiÃ±o. It might very well be the last El NiÃ±o that starts the next one. The official scientific name for El NiÃ±o, ENSO (El NiÃ±o-Southern Oscillation) reflects an understanding of this teeter-totter nature. An oscillation is a reverberation back and forth between two states, like between summer and winter. El NiÃ±o is one extreme of a years-long oscillation in the entire pacific basin and the atmosphere above it.
Foot care health centre. Swollen ankles and feet. Swollen ankles and swollen feet are common and are often caused by fluid retention, or oedema. The cause of the swelling can range from an injury to medical conditions. Seek medical advice if you are concerned about swollen feet or ankles.
Swollen feet can cause much discomfort. People often wonder that what causes swollen feet and cause of swollen feet. Basically a swollen feet or swollen ankle is an excessive fluid builds up in the muscles, which causes swelling. In other words, there is rapid increase in weight. Slight swelling, which normally occurs in summer, may be due to standing for too long or walking too much.