Global Warming 2024 Nasa. Average global temperatures for the past 12. According to an ongoing temperature analysis led by scientists at nasa’s goddard institute for space studies (giss), the average global temperature on earth has increased by at least 1.1° celsius (1.9° fahrenheit) since 1880.

Scientists who maintain the temperature record, which begins in 1880, calculate a global temperature anomaly each year to determine how much temperatures have changed. According to an ongoing temperature analysis led by scientists at nasa’s goddard institute for space studies (giss), the average global temperature on earth has increased by at least 1.1°.