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Did you know that the researchers try to create an artificial leaf to produce ecological fuels? 
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"The pollution represents the contamination of the environment by some materials which harm the health, the quality of life or the natural functioning of the ecosystems. Although a part of the pollution is the result of the nature (such as volcanic eruptions), the major part is caused by the activity of the mankind. " - read more
"For many years the producing systems for the electrical energy based on the exploitation of the alternative energy sources is improved. The biogas is one of these energetic sources. The anaerobic digestion is a complex biological system, through which, in the absence of the oxygen, the organic substance is transformed into biogas (or biological gas), constituted of methane and carbonic anhydride. The percent of methane varies depending on the type of the digested organic substance and the process conditions, from a minimum of 50% to approximately 80%." - read more
"The geothermal energy is thermal’s energy sub-category, contained within the earth’s shell. The more you climb down to the interior of the earth’s shell, the temperature rises, and, theoretically, the geothermal energy can be used more and more efficiently. It’s interesting to observe that 99 percent of the Earth’s interior is over 1,000°C, this element suggesting that its interior represents a reusable source of energy which must be exploited in big proportions, deserving all our attention." - read more
"The Sun is an immense source of energy. This energy reaches the Earth under the shape of solar radiation, radiation which can be caught and transformed into other types of energy: electrical, mechanical or thermal. Thus, the solar energy can find its use in different domains, from agriculture to research. " - read more
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