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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.

Roald Amundsen

Roald Amundsen was a polar explorer who is famous for leading the first successful trip to the South Pole in 1910-1912. Amundsen was born in 1872 in Borge, Norway. His parents wanted him to study medicine, but he soon dropped out to go to sea, following his lifelong dream of exploration.

Amundsen took part in his first polar trip, the Belgian Antarctic Expedition, in 1897–1899. It was the first expedition to spend the winter in Antarctica. Boy, that must have been cold!

In 1903, Amundsen led the first trip to successfully cross the Northwest Passage between the Atlantic and Pacific Oceans. During this time Amundsen learned Arctic survival skills from the local people like how to use sled dogs.

Amundsen and his team then set out for Antarctica in 1910 on board the ship Fram previously used by Nansen. The group spent the winter in the base camp preparing supplies.

The first attempt to reach the South pole failed. Finally on December 14, 1911, the team consisting of Amundsen and four other men, helped by 16 dogs, reached the South Pole. They beat Scott's group by 35 days.

In his later years Amundsen continued exploring the Arctic by ship and plane. In 1926, Amundsen, took part in the first crossing of the Arctic in the airship Norge. Amundsen disappeared on June 18, 1928, while flying on a rescue mission looking for missing members of Nobile's crew, whose new airship had crashed while returning from the North Pole.

Amundsen received numerous awards, including Congressional Gold Medal. Several land features in the Arctic and the Antarctic are named after him, as well as a crater on the Moon.

Last modified April 29, 2008 by Becca Hatheway.

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