The environmental issues have appeared more and more frequently on the international agenda over the past three decades. It has transnational character, doesn’t stop at border. Earth’s climate isn’t static process, indeed, it has experienced wild swings throughout its 4.6 billion year’s history. The emission of greenhouse gasses that trap heat in earth’s lower atmosphere causing global warming. Eventually the world will have warmer days and nights than colder ones. The use of such gasses is major threat to ozone, the gaseous mantle that protect earth from ultraviolet rays. It means rising sea level, a potential threat to perhaps half of the world’s population living in coastal areas. The human social and economic activities taking place in a such way that threaten the environment. A vastly increasing global population pursuing higher standards of living is potential threat to the environment. The recent fifty years have added more to world pollution than in all previous millennia of human existence. More damage is done by waste products of economic activities and industrialization as consequences of man-made chemicals. The human society on earth moving dangerously closer to the limits of planet’s carrying capacity. The growing division between mankind and nature initiated to new period of rapid climatic change, with temperature climbing from normal interglacial level. Increased tropical cyclone activity creates a greater risk of death and injury from flooding, drowning and also leads to major displacement of population. Since the mid-1990, there has 40pc increase in Atlantic hurricane activities. The variation in the composition of earth atmosphere have hoc consequences. If this issue remained unaddressed, it will have catastrophic implication for human welfare and possibly for future generations. Environment is a very serious problem. Drastic change of lifestyle plus population control to promote sustainable development is needed.