El Niño's Potential Impact on Winter and Politics.

The world is set to have its first full-fledged El Niño winter since 2018-19, due to a warming central and eastern Pacific. El Niño is known to produce extreme weather around the globe, and the impacts from the climate pattern are rather complex and vary depending on whether the world is in a weak, moderate or strong El Niño phase. Typically, strong El Niños produce warm signals across much of the Lower 48, while more moderate events can lead to warmth or extreme cold. Weaker El Niños tend to produce the coldest winters out of the three stages.