Multiyear La Nina have become more common over the last century, new research finds

New Delhi, Sep 21 (PTI) Multiyear La Nina events have become more common over the last century, new research published in the journal Nature Climate Change says.

Five out of six La Nina events since 1998 have lasted more than a year, including an unprecedented triple-year event, the study led by the University of Hawai‘i (UH) at Manoa said.

Long-lasting La Ninas could cause persistent climate extremes and devastating weather events, affecting community resilience, tourist industry and agriculture, the researchers said in their study. El Nino and La Nina, the warm and cool phases of a recurring climate pattern across the tropical Pacific, affect weather and ocean conditions around the globe.