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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.
A photo of the flight crew taken earlier this month. The crew is standing in front of the Shuttle Discovery (with its new lightweight external tank). From left to right, they are Pilot Dominic Gorie; Mission Specialists Franklin Chang-Diaz, Ph.D.; Wendy B. Lawrence and Janet Kavandi, Ph.D.; Mission Commander Charles Precourt; and Mission Specialist Valery Ryumin, with the Russian Space Agency.
Click on image for full size
Image courtesy of NASA

A New ET! Updated!
News story originally written on June 3, 1998

The shuttle Discovery lifted off yesterday at 6:06 p.m. EDT. This launch featured a new ET. Not a new extra-terrestrial, but a new external tank!

This new ET looks like the old external tanks, but it weighs 7,500 pounds less. The job of an external tank is to fuel the shuttle's 3 engines during take-off. Because the new external tank weighs so much less, the shuttle can carry that much more cargo. This will be especially important when the shuttle begins carrying up pieces for the International Space Station.

During its nine-day mission, Discovery will dock with space station Mir. Here, Andy Thomas will come onboard the shuttle for his ride home to Earth. Thomas has been living on Mir since January.

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