By Maciej Nowicki
than 6,000 hectares of arable land flip the second one 1/2 the 20th century will cross into background as an epoch that observed nice irreversibly into desolate tract (Tolba, 1992). over the past 30 years, human job acceleration in technological improvement, the beginning of electronics, the 1st house flights, and has created new deserts in Africa and Asia protecting parts as huge as Saudi Arabia. evolutionary advancements in details sci ence, transportation and fabrics technol in depth exploitation of the land has resulted in sped up erosion of the easiest soils, and the ogies. swift business improvement spurred an important raise in gross product on method is intensifying in components of India, China, Russia, Ukraine and the us. with out a international scale. among 1950 and 1990 the worldwide inhabitants doubled, yet gross product pressing remedial motion those developments may lead to accomplish impoverishment of those parts in elevated fivefold and its worth sevenfold (Brown, 1991). the many years forward (Brown, 1984).
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It is estimated that if there is a dynamic growth of public interest in this method of producing energy, 1-3 TWh could be achieved 49 Reform of the energy supply system annually even before the year 2000. The major problem associated with this source is its low frequency of availability, amounting to about 20% of the year. Use of solar energy In future, the greatest hopes are linked to the effective use of the most abundant known source of energy - the Sun . It is the only source of free energy, environmentally clean and unlimited, and it is accessible to all nations of our planet.
Without this effort, Poland will not be competitive in the united Europe of the future. All three major components of the energy system call for reforms: - obtaining and producing fuels ; - generating and distributing energy; - user consumption of energy. Bituminous coal The net effect of this array of resources is the dominance of solid fuels in the Polish energy market. Bituminous and brown coals meet about 80% of the country's demand for primary energy, which is a unique situation in global terms (Figure 14).
Thus the implementation of the idea of sustainable development would give a common feeling of a significant increase in the standard of living and would highlight the sense and beauty of life even if national income did not reach the level enjoyed by the richest countries. Sustainable development in crisis conditions This leads to the basic question of whether the notion of sustainable development can be realized in Poland now, in the context of a deep and long-lasting crisis followed by economic recovery and the unavoidable intensification of production processes.