In the latest sign the Earth is undergoing unprecedented warming, European scientists said Monday that July was the hottest month ever recorded. “While July is usually the warmest month of the year for the globe, according to our data it also was the warmest month recorded globally, by a very small margin,” Jean-Noël Thépaut, head of the European Union’s Copernicus Climate Change Service, said in a statement. Last week, citing the latest data, United Nations Secretary General António Guterres told reporters that the world is facing a “climate emergency.” He noted the July numbers were even more significant because the previous record-beating month, July 2016, occurred during one of the strongest El Nino’s on record.