According World on Environment and Development (1987), sustainable

development is "development which meets the needs of the present

without compromising the ability of future generations to meet their

own needs." Beckerman (1994) asserted that sustainability is

interdisciplinary in nature and can be explored from three broad

aspects namely: economic, social and environment sustainability.

This paper will extensively focus on the concept of environmental

sustainability that focuses on maintenance of biodiversity, ecological

system, and resource depletion. For an environmental system to be

sustainable, it must maintain a stable base of resources and prevent

over-exploitation of non-renewable sources of energy such as coal and

oil

Greener sources of energy such as biomass, solar panels, geothermal and

wind have no detrimental effects on environment and con sequently

adapts significantly to the local environ mental conditions. There is ample

justification that conservation of ecological systems and natural

resources is vital in promoting sustainable development.

Durning (1992) argued that sustainability requires a controlled level of

human consumption as well as, firm social institutions. Sustainable

development requires a stable level of population and economic

production. Increased economic activities exert pressures on local and

global environment, which interferes with atmospheric stability leading

to biodiversity loss and water scarcity.

Sustainability is nevertheless broader than human consumption