El Nino could return this year and make Earth even hotter. What you need to know.

The weather phenomenon known as El Nino could form later this year, potentially pushing global temperatures to record heights. There’s a 50- to 60-percent chance of El Nino developing during the July-September period and beyond, according to the U.S. National Oceanic and Atmospheric Administration (NOAA). The World Meteorological Organization will issue an update on El … Read more