[Greenbelt, Md.] : NASA/Goddard Space Flight Center, 
1 poster : col., b&w ; 92 x 61 cm.
The front side of the poster has color pictures of the earth with brief descriptions of the causes and effects of climatic and environmental changes. The back side of the poster is in black and white and gives a descriptions of natural and man made disasters, Earth as a system, a NASA mission sampler, classroom activities ... etc.