Australia; International
Back-to-back La Niña events are likely to become more frequent under future greenhouse-gas emissions scenarios - with a 33% increase predicted for a high-greenhouse gas emissions scenario, according to Australian and international research. The study found that under a high emissions scenario, the frequency of multi-year La Niña increases from one event every 12.1 years in 1900–1999 to one event every 9.1 years in 2000–2099. The authors say their finding of a probable future increase in multi-year La Niña frequency strengthens calls for an urgent need to reduce greenhouse-gas emissions to alleviate the adverse impacts.
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