NEW: Central US Winter Storms February 2021 UPDATED: Arctic Amplification UPDATED: Winter Storm Risk Increase Aug 31, 2015 Playing hide and seek with El Nino by M. J. McPhaden, Nature Climate Change States El Niño continues to surprise us, despite decades of research into its causes Finds that natural variations most probably account for recent events, but climate change may also have played a role Read Report Related Climate Signals Extreme El Niño Frequency Increase