On the International Day of Peace in secondary school No. 42, in Kazan, employees of the Ministry of Ecology of the Republic of Tatarstan held an environmental lesson dedicated to our city. During the meeting, the children studied eco-advice on careful attitude to water, air, land and saving electricity. "What surrounds us affects our mood and well-being. It depends on us in which city we will live, so it is very important that our children learn to appreciate the environment and take care of nature more carefully," said Olga Artemyeva, head of the environmental education department. Following the results of the event, the students came to the conclusion that it is necessary to take care of the environment and save the use of natural resources.