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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.
Space weather storms can cause trouble on Earth. Strong storms can mess up radio signals, shut down electrical systems, and expose people to radiation.
Click on image for full size
Image courtesy L. J. Lanzerotti, Bell Laboratories, Lucent Technologies, Inc.

How does Space Weather affect Life on Earth?

Earth's magnetic field is a shield that keeps most of space weather's effects where they belong; safely out in space! But space weather does effect life on Earth.

Outside of the Earth's magnetic field, radiation from the Sun can hurt satellites. We use these satellites for some radio stations, cell phones and TV stations. We also use those satellites for Earth weather reporting and to provide the Global Positioning System (your parents' car may use this system to help give directions). This same radiation could be a hazard to astronauts too.

Inside the Earth's magnetic field, space weather has its effects too. Space weather storms can change magnetic signals so that compasses don't work well and even homing pigeons get confused. Space weather storms can also destroy electrical power grids causing the loss of electricity to many people. This size storm doesn't happen very often, but it's important to know when a storm does happen so that we can keep people and things safe.

Last modified February 26, 2009 by Randy Russell.

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