New climate data show July is on track to become the hottest month in human history, with global temperatures rising to about 1.5 degrees Celsius, or 2.7 degrees Fahrenheit, above pre-industrial levels. On Thursday, the head of the World Meteorological Organization said, “Climate action is not a luxury but a must,” while U.N. Secretary-General Antnio Guterres scolded world leaders over inaction on the climate.
