More than 150 schoolchildren from Tatarstan, Mari-El, Chuvashia, Udmurtia and the Nizhny Novgorod Region gathered today at the XXV Volga Scientific Environmental Conference of Schoolchildren named after A. M. Terentyev. Here, children were able to share results of their research in the field of agro-ecology, mining, industrial and chemical ecology, bio-indication and bio-monitoring.