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Renewable energy sources are seen as an alternative to curb the advance of global warming. Found in large quantities in nature, they have the capacity to regenerate naturally and can be used indefinitely. According to data from the Ministry of Mines and Energy, approximately 85% of the electricity produced in Brazil comes from hydroelectric plants, biomass, wind and solar energy. Although these are the best known, other sources are already being used in other countries and could make up the Brazilian energy matrix in the coming decades. In this program, we will learn more about each of these matrices by talking to experts, environmentalists and representatives.