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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 Space Weather Affects Human Society

It may seem strange to you, but space weather can affect people on Earth. Let's see how!

Space weather "storms" can mess up radio waves. We use radios waves to communicate with airplanes, to send cell phone signals, and to broadcast television shows. Some radio waves bounce off a layer of our atmosphere called the ionosphere. The ionosphere changes along with the "weather in space". Space weather storms change the magnetic field around Earth. That can really mess up compasses! Changes to the magnetic field make electricity flow in strange places. That can damage electrical power systems and metal pipelines.

Space weather creates different types of radiation. Radiation can harm people and other living creatures. Some animals, like homing pigeons, have natural compasses. Space weather storms can make it harder for those animals to find their way around.

Radiation from space weather can damage satellites. It can "fry" electronics and can "wear away" at solar panels. "Strong" space weather heats Earth's atmosphere and makes it puff up. That makes more drag on satellites, which tend to fall out of orbit sooner.

Not all space weather effects are bad, though. "Storms from space" can produce beautiful light shows called the aurora, or Northern and Southern Lights. There are myths, legends and art in Arctic cultures about the aurora. For example, one Norse myth says the Northern Lights are reflections from the shields of the warrior-maiden valkyries.

Last modified January 19, 2010 by Randy Russell.

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