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Renewable energy is the energy produced from renewable resources replenished naturally on a human scale from sources: sunlight, wind, rain, tides, waves, geothermal heat, etc. Renewable energy induces a negligible ecological footprint that is quite limited in the area of operation, while at the same time providing obvious ecological benefits and contributing to the sustainable development of human societies. Today in 2022, renewable energy sources are considered alternatives to fossil fuels because they contribute...

By product is broadly understood as a product obtained in a usually industrial or biological process in addition to the main product for which the process is carried out. The main challenge addressed to humanity as well as productive ecosystems, regardless of the form of terrestrial or aquatic substrate, is to cope with the rapid rate of growth of the planet's population. The demographic growth of the planet must be in balance with the maintenance of the environment and also with climatic shifts. By-products are o...