Effect of Eco-Imbalance Some important impacts of polluted environment and imbalance eco-system are described below turn by turn : 1. Eco-imbalance adversely human health. A wide range of communicable diseases can spread through the elements of polluted environment by the man . Outbreak of SARS (Severe Acute Respiratory Syndrome ) in 2003 in many clearly proved it . 2. Eco-imbalance degrade soil productivity . Soil in many parts of country is eroded. Acidification and salinization directly reduce soil fertility. They may be caused by acid rain and accumulation of water soluble salts in the soil. Chemical degradation of soil occur if the nutrients of the soil are leached out . Soil is contaminated by harmful chemicals is like DDT and radio- activity substances. 3. Eco-Imbalance causes Desertification : Insufficient rain, non-recurring event of annual rainfall and man’s over- exploitation of the land cause desertification. Severe recurring droughts and man’s over-exploitation of dry lands are equally important factors which cause eco-imbalance. Attempts have been made in a number of countries to check desertification but always appeared to be in vain because costs exceed benefit. 4. Global warming cause eco-imbalance: Global warming means increase in the temperature of earth . There are broadly two reasons discovered by environmental scintists. Both the reasons are connected with carbon dooxide. Carbon dioxide strongly absorbs and reradiates the heat rays. It is fully transparent to visible light . Carbon dioxide acts like the glass of a green-house and tends to warm the air in the lower level of atmosphere. This is called green-house effect.