4. Increase research on application of biological knowledge to rectify 
and alleviate undesirable consequences of environmental alteration. 
Solutions could lead to positive assets. For example, growing shell- 
fish and other organisms in marine waters fertilized by effluents from 
sewage treatment plants would improve water quality, and the orga- 
nisms could be used as animal-food supplements or as fertilizer for 
plant crops. 
5. Insure that possible biological consequences are considered in 
planning environmental modification affecting marine environments, 
especially but not only for weather modification. Obviously, the long- 
term as well as the short-term effects of environmental alterations 
should be considered in this context. 
3.5. SUMMARY 
Man’s ability to modify and alter the marine environment necessi- 
tates (1) establishment of a system of marine wilderness preserves, 
(2) large-scale efforts to restore and maintain the quality of already 
damaged environments, (3) increased research into possible biological 
effects of environmental modification, and (4) advance consideration 
of biological effects of proposed programs that might cause environ- 
mental modifications. 
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