It's official. 2024 was the hottest year in the instrumental record. How hot? Last year the global average temperature rose more than 1.5 degrees Celsius (2.7 degrees Fahrenheit) above the 19th century pre-industrial mean, according to most of the scientific organizations that track global temperature trends. This exceeds, for the first time, the aspirational goal set forth by the 2015 Paris Climate Change Agreement to limit the increase in global temperatures to 1.5 degrees Celsius above pre-industrial levels. Each of the 10 hottest years have come over the past decade.
Let's look at what various research groups have reported.
