Future use of biomass is totally dependent on the cost of
producing energy from biomass compared to fossil fuels and realization
of environmental impacts caused by fossil fuels [54]. That is an disputable fact that diversifying energy resources and moving
towards clean and renewable energies are unavoidable necessities,
because of running out of fossil fuels and greenhouse effect arising
from their use, also requirement of ensuring the sustainability. It is
essential to consider the environmental effect and negative
changes in the food chain during exploration and evaluation of
these resources. During the diversification of resources, it is important
to determine and prefer which method is optimal for which
resources. Simultaneously, effective use of resources should not
be neglected.