Post by gordo
This patch of high sea level is slowly traveling eastward through the
tropical Pacific Ocean along the equator. Known as a downwelling Kelvin
wave, this type of signal is often a precursor to an El Niño event.
Your solution to the "problem"?
"El Niño may have led to the demise of the Moche and other pre-Columbian
Peruvian cultures. A recent study suggests a strong El-Niño effect between
1789 and 1793 caused poor crop yields in Europe, which in turn helped touch
off the French Revolution. The extreme weather produced by El Niño in
1876–77 gave rise to the most deadly famines of the 19th century. The 1876
famine alone in northern China killed up to 13 million people.
"An early recorded mention of the term "El Niño" to refer to climate
occurred in 1892, when Captain Camilo Carrillo told the geographical society
congress in Lima that Peruvian sailors named the warm north-flowing current
'El Niño' because it was most noticeable around Christmas. The phenomenon
had long been of interest because of its effects on the guano industry and
other enterprises that depend on biological productivity of the sea.
"Charles Todd, in 1888, suggested droughts in India and Australia tended to
occur at the same time; Norman Lockyer noted the same in 1904. An El Niño
connection with flooding was reported in 1894 by Víctor Eguiguren (es)
(1852–1919) and in 1895 by Federico Alfonso Pezet (1859–1929). In 1924,
Gilbert Walker (for whom the Walker circulation is named) coined the term
What were CO2 levels then?