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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.
15 of the Moai on Easter Island.
Click on image for full size
Image Courtesy of the Wikipedia Commons

Easter Island

Easter Island, also known as Rapa Nui, is a volcanic island located in the Southeast Pacific Ocean. It was given the name "Easter Island" when a Dutch explorer visited the island on Easter Sunday in 1722. The island is a territory of Chile.

Easter Island is very isolated, located 3,600 km (2,237 miles) west of Chile and 3,200 km (2,000 miles) east of Tahiti. This small island (171 square km/66 square miles) is shaped like a triangle, with an extinct volcano at each corner. It contains high plateaus and craters surrounded by coastal bluffs. Ancient lava flows cover part of the island, creating a rough and broken surface. The only standing water found on the island is in the volcanic craters. Easter Island has a subtropical climate which is made cooler because an ocean current called the Humboldt current brings cool water to this part of the Pacific Ocean.

The island is famous for the many large stone statues created by the Rapa Nui people. The statues, called moai, were part of the ancestor worship practiced by the original inhabitants of the island. Over many years, they erected 887 moai out of volcanic rocks and placed most of them along the coastline of the island. The moai stand up to 20 meters (66 feet) tall! In the 1500s the Rapa Nui people shifted from creating moai to creating petroglyphs of the bird-man cult. In the late 1700s, the Rapa Nui people experienced a period of warfare between different groups on the island. Many of the moai fell over as a result of these wars. In the late 1800s, the Rapa Nui population was almost completely wiped out when slave traders from Peru raided the island. A small percentage of the Rapa Nui population survived the slave raids and exposure to European diseases. Approximately 2,300 Rapa Nui people live on Easter Island today.

Chile designated 40 percent of the island as a national park in 1935, and in 1996 UNESCO designated the island a World Heritage Site. Tourism makes up the main economic activity on Easter Island today.

Last modified September 18, 2008 by Becca Hatheway.

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