Mari State University was founded in 1972 in Yoshkar-Ola, Mari El Republic. Mari State University consists of 6 faculties and 6 institutes that train well-educated specialists for most sectors of the Russian national economy. Read More
Although the ozone hole over Antarctica is well known, few people are aware that the protective ozone in the stratosphere periodically breaks down over the Arctic, depleting the ozone layer there. Prior to that, it occurred in the spring of 2011 and ...
