The Greenhouse Effects

Gases pollute the atmosphere because they are produced too quickly to be cleared away naturally by rain, winds or plant life. These poisonous gases came from several sources such as oil producers, industries which burn fuel and motor vehicles. When the gases are released they have two harmful effects. First, some of the gases are caught by rain clouds and fall as acid rain which damages the environment. Secondly increasing amounts of carbon dioxide forms a cover over the earth keeping the heat of the sun close to the earth’s surface just as a greenhouse keeps heat in. The increase in carbon dioxide is worse by the cutting down of forests. Trees use carbon dioxide and the fewar trees there are the more of this gas remains in the air. The USA and Europe are now leading an international effort to limit deforestation. In 1996 Washington set goals for industry and several international agreements have already been effective in reducing the production of harmful gases. Only international cooperative can deal with this problem which if not controlled may threaten all life on earth.