THE VARIED ROLES OF SNAILS - National Universities Commission
THE VARIED ROLES OF SNAILS - National Universities Commission
THE VARIED ROLES OF SNAILS - National Universities Commission
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1820 and twice that in 1930 (Martins, 1983). There are now<br />
more than six Billion people. This population growth is not<br />
without setbacks such as childhood mortalities due to<br />
diseases and malnutrition, fertility problems and many<br />
other demographic transitions. Despite these, population<br />
growth today is still rapid and exponential. Survival<br />
became linked to social, agricultural, technical and<br />
economic development. These result in the environment<br />
being bedeviled with such problems as deforestation,<br />
overgrazing, erosion, desertification, urban expansions,<br />
population changes, climatic changes and global warming.<br />
Features that have produced individuals faced with several<br />
harmful side effects like, high population density, high<br />
consumptions, excessive use of non-renewable resources,<br />
the accumulation of wastes, pollution and the deterioration<br />
or destruction of the natural environment. As the years<br />
progress, stagnation of socio-economic development stirs<br />
man in the face. This situation, in conjunction with the<br />
increase in population, make it clear that man is heading for<br />
catastrophe even faster than expected, unless he starts to<br />
deal with these problems by not further destroying the<br />
ecological support systems but rather enhancing their<br />
responsible exploitation, renewal and protection.<br />
The problems with the dynamics of human life lie in the<br />
following two processes:<br />
(a) the initial productive potential of the earth<br />
accommodated population growth but the demands of<br />
the population exceeded the potential sustainable<br />
harvest, so that biological and ecological reserves are<br />
increasingly exhausted;<br />
3