ABSTRACT
The average temperature of the atmosphere at Earth’s surface fell to 14.35 degrees Celsius in 1999, according to land-and ocean-based measurements from the Goddard Institute for Space Studies of the National Aeronautics and Space Administration (NASA). 1 (See Figure 1.) Although this is 0.23 degrees below the record-setting 1998 average, it is the sixth highest of this dataset, which extends back to 1950, and the seventh highest in a land-based series dating to 1866. 2 (See Figure 2.)
