The most recent extreme El NiÃ±o events were in 1982-83 and 1997-98, when warm sea surface temperatures in the normally cool and dry eastern Pacific caused a massive reorganisation of global rainfall.
"Nations in the western Pacific experienced devastating droughts and wildfires, while catastrophic floods occurred in the eastern equatorial region of Ecuador and northern Peru," said Wenju Cai of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) in Victoria, Australia, part of the research team.
1997-8 is right where the Global-Warming deniers start their graphs claiming that AGW has slowed or stopped or never has existed. Wait for the next big El Nino. They'll be wondering why global warming sped up so much.