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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 artist's rendering of the Antarctica Gamburstev Province (AGAP) project.
Click on image for full size
Image Courtesy of Zina Deretsky/NSF

Research Team Confirms Alps-like Mountain Range Exists under East Antarctic Ice Sheet
News story originally written on February 24, 2009

A team of international scientists has completed an survey of part of the East Antarctic Ice Sheet. The survey was done by the Antarctica Gamburstev Province (AGAP) project, and their goal was to learn more about the ice sheet and mountains underneath it.

The researchers think this mountain range, which is buried more than four kilometers (2.5 miles) under the ice, caused the East Antarctic Ice Sheet to form. This massive ice sheet is more than 10 million square kilometers large and sits on top of the land of Antarctica.

Fausto Ferraccioli, one of the scientists from the project, explains, "We now know that not only are the mountains the size of the European Alps but they also have similar peaks and valleys. But this adds even more mystery about how the vast East Antarctic Ice Sheet formed. If the ice sheet grew slowly then we would expect to see the mountains eroded into a plateau shape. But the presence of peaks and valleys could suggest that the ice sheet formed quickly--we just don't know."

This project included scientists, engineers, pilots and support staff from Australia, Canada, China, Germany, Japan, the U.K. and the U.S. They used two airplanes that contained many instruments, including radar that can penetrate through the ice.

Last modified April 22, 2009 by Becca Hatheway.

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