• On June 5, 1973, the world first celebrated World Environment Day. 
    The UN calls World Environment Day “the biggest day for positive environmental action.” Everyone from presidents to celebrities to ordinary students can contribute to a healthier environment through their own actions. 
    Every year, World Environment Day is hosted by a different city or region, with a different theme. Kigali, Rwanda, hosted the 2010 World Environment Day, with the theme “Many Species. One Planet. One Future.” The theme for 2007, hosted in Tromso, Norway, was “Melting Ice—A Hot Topic?” The island nation of Kiribati is the host for 2014, and the theme is “Raise Your Voice, Not the Sea Level.”
  • Term Part of Speech Definition Encyclopedic Entry
    celebrate Verb

    to observe or mark an important event with public and private ceremonies or festivities.

    city Noun

    large settlement with a high population density.

    conservation Noun

    management of a natural resource to prevent exploitation, destruction, or neglect.

    Encyclopedic Entry: conservation
    environment Noun

    conditions that surround and influence an organism or community.

    island Noun

    body of land surrounded by water.

    Encyclopedic Entry: island
    landmark Noun

    significant or important event.

    nation Noun

    political unit made of people who share a common territory.

    Encyclopedic Entry: nation
    public Noun

    people of a community.

    region Noun

    any area on the Earth with one or more common characteristics. Regions are the basic units of geography.

    Encyclopedic Entry: region
    sea level Noun

    base level for measuring elevations. Sea level is determined by measurements taken over a 19-year cycle.

    Encyclopedic Entry: sea level
    summit Noun

    meeting or conference of top leaders.

    United Nations Noun

    international organization that works for peace, security and cooperation.

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