Assignment on Climate Change and concession of Bangladesh in contest of Global Worming

A schematic representation of the exchanges of energy between outers space, the car this atmosphere and the earthy surface. The ability of the atmospheres to captures and recycle energy emitted by the Earth subspace is the defining characteristic of the green house effect.
Due to greenhouse effect Global warming is bearing a global warning for the low-lying sea-facing over populated country like Bangladesh. This perhaps has made the world community more concerned about than others environmental issue. But it is man who has made it so alarming through his unleilled one-sided development activities without taking the environmental aspects into account over time.
Building designed for the protection of tender or out-of-season plants against excessive cold or heat. Usually a glass- or plastic-enclosed structure with a framing of aluminum, galvanized steel, or such woods as redwood, cedar, or cypress, it is used for the production of fruits, vegetables, flowers, and any other plants requiring special temperature conditions. It is heated partly by the sun and partly by artificial means. This controlled environment can be adapted to the needs of particular plants.
A greenhouse is a structure with a glass or plastic roof and frequently glass or plastic walls; it heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall. These structures range in size from small sheds to very large buildings.
The glass used for a greenhouse works as a selective transmission medium for different spectral frequencies, and its effect is to trap energy within the greenhouse, which heats both the plants and the ground inside it. This warms the air near the ground, and this air is prevented from rising and flowing away. This can be demonstrated by opening a small window near the roof of a greenhouse: the temperature drops considerably. This principle is the basis of the autovent automatic cooling system. Greenhouses thus work by trapping electromagnetic radiation and preventing convection. Miniature greenhouses are known as a cold frame.