One in 1,000 years? Old flood probabilities no longer hold water
- Written by John Quiggin, Professor, School of Economics, The University of Queensland

Australia’s catastrophic east coast floods have been described by the NSW premier as a “one in 1,000-year event, a term that has created a great deal of confusion.
Lengthy explanations that these terms are not the same as "occurring 1,000 years apart” or “once every 1,000 years” have only added to the...