On the sidelines of the 81st United Nations General Assembly, GZERO Media’s Tony Maciulis sits down with Celeste Saulo, Secretary-General of the World Meteorological Organization (WMO), to discuss the developing El Niño, the growing importance of early-warning systems, and how artificial intelligence is changing weather forecasting.Saulo explains how warming waters in the central Pacific can alter weather patterns thousands of miles away, increa…