A sizzling month marked by record heat waves, major wildfires, melting sea ice and a burgeoning El Niño will go down in the books as the hottest July on record — at least until next year, federal officials said. The planet and its oceans roasted last month as global average temperatures soared 2.02 degrees above average, making July 2023 not only the hottest July ever, but very likely Earth’s warmest month in at least 174 years of record keeping.