date:Aug 12, 2014
the timescale at which El Nio can be observed.
Climate models and a variety of datasets had concluded that El Nios were essentially nonexistent, did not occur, before 6,000 to 8,000 years ago, Mr Sachs said. Our results very clearly show that this is not the case, and suggest that current understanding of the El Nio system is incomplete.
The research was funded by the US National Science Foundation, the US National Oceanic and Atmospheric Administration and the French National Research Agency.