Proportion of 47% said that the Earth is warming more rapidly because of the greenhouses gases, while minority (29%) agree that it is because of the carbon dioxide, and small number which is (24%) are totally convinced that the reason is oxygen .Close to half percent (47%) convinced that the best solution to get rid of global warming is to increase the natural cover rate, on the other hand 41% of respondents can see that replacing energy sources can reduce the global warming, and few respondents (12%) agreed that stop urban sprawl is the best solution.