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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.
Homing pigeons are apparently able to sense magnetic fields and use an internal compass to help them navigate. When space weather disturbances disrupt Earth's magnetic field, these pigeons can become confused and lose their way.
Click on image for full size
Image courtesy of M.A. Shea, Geophysics Directorate, Phillips Laboratory.

Confused Homing Pigeons and Space Weather

Certain animal species on Earth (such as the homing pigeon) are able to detect Earth's magnetic field and use it for navigational purposes. Homing pigeons have been known to reach home by flying over 1,600 km (1,000 miles) in two days time through unfamiliar territory. In homing pigeons, this ability has been cultivated by selective breeding. Homing pigeons were used by the U.S. military during World War I, World War II and the Korean War. During World War I, one amazing bird flew 25 miles in 24 minutes to deliver a message, arriving with one leg shot off and a bullet wound. Pigeons were replaced in the military by electronic devices in 1956. However, racing homing pigeons is a sport that is enjoyed worldwide.

During space weather disturbances, the intense electric currents flowing in near-Earth space produce nonsteady magnetic fields that are felt at the Earth's surface. Homing pigeons have been observed to become confused during such disturbances and can even be lost.

Last modified July 31, 2008 by Randy Russell.

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