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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 concept of the CoRoT satellite in orbit.
Click on image for full size
CNES / D. Ducros

CoRoT - Searching for distant worlds

In December 2006, the European Space Agency launched a satellite that will study convection and rotation in pulsating stars. The mission will also look for planets that pass in front of, or transit, these distant stars. The lead scientists from France named the satellite CoRoT, which stands for Convection, Rotation, and planetary Transits.

CoRoT will make very accurate measurements of the amount of light coming from many stars over time. Some of these stars will have planets around them. Some of those planets will pass directly in front of the star and cause a brief drop in the amount of light CoRoT records. If these drops happen regularly from the same star, if the color of the light does not change, and if the shape of the drop is right -- it could be a planet.

Even planets as small as the Earth around other stars might be found with CoRoT. This is about 10 times smaller than the smallest planets that have been found from telescopes on the ground. If it finds a planet like the Earth, then we can begin looking for signs of liquid water, green plants, and maybe even intelligent life!

Last modified April 12, 2007 by Travis Metcalfe.

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