The green house effect means the gradual (µg) warming (DòZv) of the air surrounding (Pvwicvk) the earth. It is a result of heat being trapped by environment pollution. The carbon dioxide is also responsible for it. As a result of burning coal and oil, carbon dioxide is produced. Because of the green house effect the ice covering the North and South poles is melting. It may raise sea level. As a result the southern part of Bangladesh and some other costal (DcK~jxq) countries may go under water. Animals and plants are endangered with the threat of extinctions (wejywß). Many natural disasters (`~‡hv©M) are the effects of it. Tree plantation programme should be taken soon. Steps should be taken to stop the production of carbon dioxide.