More than 120 schoolchildren from cities and municipal districts of the Republic of Tatarstan, Moscow, the Republic of Bashkortostan, the Republic of Mari El and the Orenburg Region took part in the XXVI Volga Scientific Ecological Conference of Schoolchildren named after A.M. Terentyev. The conference is held in order to attract pupils to research and practical work in the field of environmental protection, to exchange experience of the Volga region to improve the environmental situation, to identify the most gifted, creatively thinking and professionally oriented pupils.