nowadays. When people want to use lands because of transport, industrial and economic needs, they cut down trees in big numbers. However, it negatively affects the environment . Another difficulty is the amount of waste humans throw away, leave, and collect in the forests. Fortunately, more and more companies are becoming concerned and try to protect nature. They start producing things from recycled materials – paper, metal, plastic, clothes. Moreover, there are some projects where everybody can take part. The main principle is reuse, recycle , The process of solving environmental problems is a vital priority.