Science Focus - the home of BBC Science Focus Magazine
When is the next El Niño? © iStock

When is the next El Niño?

Subscribe to BBC Science Focus Magazine and get 6 issues for just £9.99

El Niño temperature changes are devastating to coral reefs so it's good to know when the next one will hit.

Asked by: Liz Barrett, Lancaster

Advertisement

This anomalous warming of the central Pacific causes bizarre weather events in Peru around Christmas. The effects are felt much further afield, but it has proved hard to predict their appearance.

Records show that El Niño occurs at intervals of between two and seven years, but the strength of the El Niño event also varies. There appears to be an El Niño developing in 2009 but it is still too early to say how strong it will be.


Advertisement

Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.

Authors

Robert is a science writer and visiting professor of science at Aston University.

Advertisement
Advertisement
Advertisement

Sponsored content