Current Events

  • Atmospheric CO2 Level Tops 400 ppm
    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm rep...Read more

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    Atmospheric CO2 Level Tops 400 ppm

    During the week of May 13th, the CO2 level at the Mauna Loa Observatory in Hawaii topped 400 ppm repeatedly. Daily levels of CO2 can vary due to weather, and there are seasonal trends as well. The level of atmospheric greenhouse gases continues to increase, now over 120 ppm since the Industrial Revolution began. For more on the Keeling Curve, see http://keelingcurve.ucsd.edu/. Find out more about greenhouse gases and warming.
  • Massive Tornado Outbreak on Tornado Alley
    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Io...Read more

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    Massive Tornado Outbreak on Tornado Alley

    The week of May 19 brings dozens of tornadoes to Tornado Alley in the states of Oklahoma, Kansas, Iowa, Illinois and Missouri. On May 20th, a massive tornado struck Moore, Oklahoma, devastating communities - destroying over 100 homes and hitting two elementary schools and a hospital - with many casualties and deaths. Our thoughts are with our friends and colleagues suffering from these storms. For more on the May 20th storms, see the NOAA Storm Prediction Center Storm Report.
  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.
Sketch based on a drawing from the Florentine Codex, a sixteenth-century colonial manuscript compiled by Fray Bernardino de Sahagun.
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Huitzilopochtli

Huitzilopochtli, whose name means "Blue Hummingbird on the Left," was the Aztec god of the Sun and the war. He was shown as a blue man fully armed with hummingbird feathers on his head. His mother Coatlicue became pregnant with Huitzilopochtli when a ball of feathers fell from the heaven and touched her. Huitzilopochtli's siblings thought that their mother Coatlicue had dishonored them with her mysterious pregnancy.

One sister of Huitzilopochtli, Coyolxauhqui, encouraged her star sisters and brothers to kill their mother Coatlicue. However, Huitzilopochtli sprang out of his mother and saved her. Coatlicue regretted such violence. Thus, Huitzilopochtli cut off Coyolxauhqui's head and threw it in the sky to become the Moon.

Aztecs used to offer human sacrifices to Huitzilopochtli. The victims were usually prisoners captured in the frequent wars that Aztecs were fighting against their neighbors. The sacrifices were intended to secure rain, harvests and success in war.The most common form of sacrifice practiced by Aztecs was to tear out the heart of a living body and offer it to the Sun.

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