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  2. Earth Hour - Wikipedia

    en.wikipedia.org/wiki/Earth_Hour

    Earth Hour is a worldwide movement organized by the World Wildlife Fund (WWF). The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the ...

  3. Lights go out around the globe to commemorate Earth Hour - AOL

    www.aol.com/article/2016/03/21/lights-go-out...

    Every year for one hour in March, lights are turned off in homes, businesses and world monuments to raise awareness about climate issues facing our planet. Lights go out around the globe to ...

  4. List of environmental dates - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental_dates

    Earth Day: April 22 International Pallas's Cat [45] [46] [47] April 23 World Day for Laboratory Animals: April 24 World Tapir Day [48] [49] [50] April 27 International Hyena Day [51] [52] April 27 Day of Remembrance for all Victims of Chemical Warfare: April 29 Green Up Day: First Saturday of May in Vermont World Tuna Day [53] [54] [55] May 2

  5. Sydney among first cities to switch off lights for Earth Hour

    www.aol.com/article/2016/03/19/sydney-among...

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  6. List of freedom indices - Wikipedia

    en.wikipedia.org/wiki/List_of_freedom_indices

    This is an accepted version of this page This is the latest accepted revision, reviewed on 7 December 2024. This article is a list of freedom indices produced by several non-governmental organizations that publish and maintain assessments of the state of freedom in the world, according to their own various definitions of the term, and rank countries as being free, partly free, or using various ...

  7. Denis Hayes - Wikipedia

    en.wikipedia.org/wiki/Denis_Hayes

    Following the success of the first Earth Day, Hayes founded the Earth Day Network and served as international chairman for Earth Day's anniversaries in 1990 [19] and 2000. [20] [21] Internationally, he is recognized for expanding the Earth Day Network to more than 180 nations. [22] It is now the world’s most widely observed secular holiday. [23]

  8. What is the birthstone for December? Hint: There's actually ...

    www.aol.com/birthstone-december-hint-theres...

    One place to start is to know their birth month symbols and gemstones. People born in December can have one of two astrological signs: Sagittarius (Dec. 1 through 21) or Capricorn (Dec. 22 through ...

  9. Degrees of freedom (physics and chemistry) - Wikipedia

    en.wikipedia.org/wiki/Degrees_of_freedom_(physics...

    By the equipartition theorem, internal energy per mole of gas equals c v T, where T is absolute temperature and the specific heat at constant volume is c v = (f)(R/2). R = 8.314 J/(K mol) is the universal gas constant, and "f" is the number of thermodynamic (quadratic) degrees of freedom, counting the number of ways in which energy can occur.