yr” NUGreenverg/ dmh/dvg Aug. 13, 1954 ~y BER OE 2a a cb e J koe cd iW etd eh! In the Spring of 1953 public attention was focused on the unusual number of tornadoes. Many people attributed this weather anomaly to the Nevada test series. On the other hand, study of these tornadoes has shown that there were relatively fewer tornadoes in ths regions in which the atomic cloud was located or in which radioactive dust had fallen than in the rest of the country. It is not claimed that the atomic cloud actually inhibited the tornadoes, but certainly a strong case can be made against any causal relationship. This Spring, the Atomic Energy Commisaion conducted a test series at the Pacific Proving Ground -- over 5,000 miles from the shores of the United States. As occurs every year, there have again been weather anomalies and accusing fingers pointed at the dust produced by tne explosion. This time, some areas of the United States and certain foreign countries camplained about drought ™ @F conditions while others felt that the atomic teats might have pro- mate. FF duced unusually heavy rainfall. The latest teste in the Pacific differ from the previous Nevada tests in several ways: First, a on more powerful bombs were fired; second, the bombs were dstonated p over types of terrain different from that of Nevada; and third, the w. test location was thousands of miles from large land masses rather than within the United States. In the light of these differences, ev REPRODUCED AT THE DWIGHTD. EISENHOWER LIBRARY it seems worthwhile te review what we now know about the effects of