A research which was recently published in Journal Science Advances has revealed that global warming’s frequency may double and this can have negative effects on El Niño and La Niña phenomena. They are expected to become even stronger and more frequent.
The National Oceanic and Atmospheric Administration (NOAA) describe El Niño and La Niña as complex weather phenomena which result from variations in temperature in the Pacific Ocean. While El Niño is characterized by warmer water temperatures than the normal limit, La Niña is characterized by cooler temperatures.
They both oppose the El Niño-Southern Oscillation (ENSO), which represents a difference in temperature between the ocean and the atmosphere. Due to its moisture, El Niño brings forth extreme thunderstorms. La Niña, on the other side, brings cold temperatures.
Usually, El Niño takes place twice in seven years and is characterized by a raise in the sea level. Sometimes it can provoke flooding. Its consequences are changes in the ocean conditions and marine life over the world, for a long period of time.
On the contrary, La Niña is characterized by low sea levels. Because of this, marine life may be destroyed, such as it is the case for the corals in South Pacific Islands.
Scientist claimed that if the climate changes continue in this manner, then the ocean’s fluctuation may become stronger and more common. Meteorologists have even made a prediction according to which at the end of 2015, El Niño will hit the American West Coast and that it will last more than ever.
“The possibility of more frequent flooding in some areas and sea level drops in others would have severe consequences for the vulnerable coastlines of Pacific islands,” declared Matthew Widlansky, researcher at the University of Hawaii.
However, this is not new information, since the research completes the result of an older one that discovered almost the same thing, meaning that the atmospheric changes will visibly affect both El Niño and La Niña.
Image Source: Wikimedia
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