Abstract: The effects of climatic changes induced by carbon dioxide and other trace gases on global ecology, agriculture, fisheriesy water resources’melting of the polar ice-caps, deputation settlements and diseases and its control strategies have been discussed.Most scientists believe that greenhouse effect rnay qe beneficial to some local area, but it has more disadvantages to the eco-environment from the global point of view. Measures as the effective emission control.of greenhouse gases, the prevention of forest destruction and conservation of present forest eco-system have (to be taken in order to alleviate the dangers of greenhouse effects.