Science, Technology and Society

______________________________________ The felling down of the forest trees exposes the soil surface to erosion, constitutes threats to wild life, makes the land vulnerable to deserts encroachment and creates atmospheric imbalance.

Industrial activities This leads to high accumulation of Carbon dioxide in the atmosphere, giving rise to greenhouse effect. The end result is environment degradation or downward trend of the environment. The use of halogenated hydrocarbon pesticides can initiate liver cancer and also cause some birth defects. They are also reported to cause make sterility e.g. D.D.T (Dichlorodiphenyl trichloroethylene) interferes with ion transport in and out of nerve fibers resulting in tremors, convulsion and death.

The burning of fuel, bush, household waste, fumes from passing vehicles of decomposing organisms (bacteria) all coupled with deforestation result in the accumulation of Carbon Dioxide (CO2) in the atmosphere. These lead to a phenomenon known as global warming, other call it thermal pollution. This is a major contemporary concern of scientist yet caused by them. It is believed that the higher the concentration of CO2 in the atmosphere, the warmer the earth 235