The National Oceanic and Atmospheric Administration declared the return of La Niña on Thursday, marking the start of an expected period of global cooling that nonetheless carried ominous signs ...

First predicted to form last summer, climate troublemaker La Niña has developed at last, federal climate scientists announced Thursday morning. However, the pattern is a weak one, and isn't ...

A La Niña climate pattern has officially arrived, meteorologists said Thursday, which is linked to weather trends characterized by warmer, drier conditions across most southern states with ...