What is La Niña and El Niño? How often do they happen? And are they good or bad?  In this episode, Anika and Esther find out all about La Niña and El Niño with Jonathan How who is a senior meteorologist at Australia’s Bureau of Meteorology.  Our thoughts are with all the communities across the world who have been - and are being - affected by the flooding and drought that can result from the La Niña and El Niño weather systems.  Enjoy a new episode every fortnight, and if YOU have a big Fact Detective question, send it to [email protected]  Guest: Jonathan How who is a senior meteorologist at Australia’s Bureau of Meteorology Hosts: Anika and Esther Production: Cinnamon Nippard Sound design: Josh Newth Executive Producer: Lorna Clarkson  See omnystudio.com/listener for privacy information.