noun
Environment Month (June)
A designated month in Japan for environmental awareness activities, observed in June.
6月は環境月間です。
June is Environment Month.
環境月間に合わせて、地域の清掃活動が行われた。
In line with Environment Month, a local cleanup activity was held.
Compound of 環境 (kankyō, 'environment') + 月間 (gekkan, 'month-long period').