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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.
An image of one of a dozen such tornadoes found by SOHO. The lighter right-hand side is material that is moving towards SOHO. The darker left-hand side is material that is moving away from SOHO (the doppler effect).
Click on image for full size
Courtesy of NASA

Tornadoes on the Sun!
News story originally written on May 1, 1998

There just seem to be so many exciting things happening in space these days (and for the last year in fact!). One new discovery is that there are storms on the Sun very similar to our own tornadoes! This discovery was made by ESA/NASA spacecraft SOHO.

SOHO has spotted a dozen of these gyrating storms so far. It seems they occur most frequently at the poles of the Sun. These storms are as wide as the whole of planet Earth and have gusts ten times faster than anything measured on Earth! Doesn't seem as if we're in Kansas anymore!

Also, happening on the Sun...There seems to have been a coronal mass ejection two days ago. X-ray fluxes at Earth have been extremely high. Activity like this on the Sun can often disrupt radio communications. It can cause pilots to lose contact with their control towers and even disorient migratory anmals that depend on the Earth's magnetic field for guidance. The space weather forecast for the next few days is unsettled to active.

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