La Niña events becoming more dangerous

Global warming has the potential to double the risk of La Niña events in the Pacific Ocean. La Niña events happen when sea surface temperatures contrast with warming land temperatures of Southeast Asia in the west. 

http://www.nc-climate.ncsu.edu/secc_edu/images/LaNina_US_conditions.gif

This new research suggests that extreme La Niña events could happen every 13 years instead of the usual 23 years. The increase in these events could mean a rise in droughts in the Southwestern US, floods in the western Pacific regions, and hurricanes in the Atlantic.

Source: China Daily