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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.
This is an artist's impression of the icy Kuiper belt object 2002 LM60, dubbed "Quaoar" by its discoverers.
Click on image for full size
Courtesy of NASA and G. Bacon

An Icy New Planet?
News story originally written on October 9, 2002

A new object has been found within the solar system. It is the largest object to be found since Pluto was discovered in 1930! Scientists Michael Brown and Chadwick Trujillo from the California Institute of Technology discovered the distant object with the help of a ground based telescope and the Hubble Space Telescope.

The scientists are calling their discovery Quaoar. At 4 billion miles from Earth, and over 1 billion miles from Pluto, it is the furthest object in the solar system ever to be seen with a telescope. Like Pluto, Quaoar is located in the Kuiper Belt, an icy field of debris extending 7 billion miles beyond Neptune. Quaaor is the second largest object in the Kuiper Belt at about half the size of Pluto. Unlike Pluto, Quaoar’s orbit around the Sun is nearly circular. Scientists Brown and Trujillo suggest that it is probably made up of a mixture of ice and rock.


Last modified October 9, 2002 by Lisa Gardiner.

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