However even if they are readily available with time the reserves will be depleted and this will pose as a challenge not only to the forest ecosystem but also the energy demands. On the other hand the use of renewable source of energy is beneficial since they are environmental friendly. The renewable energy sources also have some risks such as the use of hydro projects can affect forest ecosystems if their impacts are not mitigated.

3) Species extinction

In the forest ecosystems plants and animals are increasingly extinct in the present times. This can be attributed to both natural and man-made reasons. The major cause of this extinction is the destruction of the forest ecosystem for instance through clearing of forest land for cultivation, urbanization or harvest wood. This will lead to shrinking of habitats for both animals and plants in the ecosystem (Hogan, 2010), The existence of biodiversity is...
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