1988_Hansen_Lebedeff_tempgraph Published July 3, 2012 at 473 × 499 in Global Temperature Graphs ← Previous Next → Global surface air temperatures update through 1987 by Hansen and Lebedeff Global surface air temperatures: Update through 1987 GEOPHYSICAL RESEARCH LETTERS, VOL. 15, NO. 4, PP. 323-326, 1988 James Hansen, Sergej Lebedeff Like this:Like Loading...