Each of us throws away waste every day, and in the scales of one city it’s hundreds of tons of garbage a day. To sort so much waste is difficult. Therefore, the number of landfills grows, and for a big city it turns into a big problem, and sometimes into an ecological catastrophe. We are building the Recereum platform, and we offer to earn coins for the correct waste sorting. With such cooperation, we are sure that much more garbage will be recycled, and factories will receive much more recyclables for production. With blockchain we can be sure of the reliability and safety of this process.