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  • Irish Chronicles Document Links Between Volcanoes and Weather
    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong corr...Read more

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    Irish Chronicles Document Links Between Volcanoes and Weather

    A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period. Data analyzed in this study cover the period from 431 to 1649, during which time up to 48 volcanic eruptions are identified in Greenland ice core records through deposition of volcanic sulfate in annual layers of ice. You can find the study (open access), published on 6 June 2013 in IOP Publishing's journal Environmental Research Letters, at http://iopscience.iop.org/1748-9326/8/2/024035/article. Find out more about how volcanoes can influence climate.
  • EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US
    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, acco...Read more

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    EF-5 Tornado in El Reno, Oklahoma Widest Ever Recorded in US

    The EF-5 tornado that hit El Reno, Oklahoma on May 31st was the widest ever recorded in the US, according to the National Weather Service in Norman Oklahoma. The tornado, which remained on the ground for 40 minutes and reached 2.6 miles across (4.2 km), took the lives of 18 people including storm chasers Tim Samaras, Paul Samaras and Carl Young. For more information on the tornado, visit http://ow.ly/i/2hfDG.
  • 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.
Voyager 2 image of Uranus and it's 10 innermost moons. Satellite 1986 U 10 is in the upper right corner.
Click on image for full size
Courtesy of NASA

Yet Another Moon for Uranus...
News story originally written on August 16, 1999

Another moon has been found orbiting the planet Uranus. This increases the total number to 18, leaving Uranus tied with Saturn as the planet with the most moons. Discovered by a University of Arizona scientist, the satellite is named Satellite 1986 U 10.

This finding is particularly interesting because 13 year old photographs were used to find the moon. In January, 1986, Voyager 2 took seven pictures of Satellite 1986 U 10. At that time, only nine innermost satellites were known of. The new moon increases the number to 10.

The discoverer, Erich Karkoschka, says, "This discovery is very unusual. Typically, satellites are found within days after the discovery image has been taken. In this case, the discovery image is more than 13 years old".

After one year, Satellite 1986 U 10 will be given a new name by the International Astronomical Union. Currently, the other nine innermost moons are named for characters in Shakespeare plays.

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