Current Events

  • 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 Emperor Penguin dives into the ocean through a hole in the ice.
Click on image for full size
Image courtesy of Emily Stone, National Science Foundation

Polar Games and Activities

Dive into one of our new polar activities or games!

Animation showing Annual Variation of Sea Ice Extent in the Arctic

Animation showing Annual Variation of Sea Ice Extent in the Antarctic

Changing Planet:  The Case of the Leaky Gyre

Changing Planet:  Melting Glaciers

Changing Planet:  Permafrost Gas Leak

Compare Images of Arctic Sea Ice Extent Side-by-side

Compare Images of Antarctic Sea Ice Extent Side-by-side

Earth's North Magnetic Pole interactive

Glaciers: Then and Now - Compare photographs of glaciers to observe how Alaskan glaciers have changed over the last century.

Graphing Sea Ice Extent in the Arctic and Antarctic A classroom activity for grades 5-12 where students graph sea ice extent (area) in both polar regions (Arctic and Antarctic) over a three-year period to learn about seasonal variations and over a 25-year period to learn about longer-term trends.

Model a Moving Glacier - Make a model of glacier motion and then experiment with it.

Polar Jigsaw Puzzles - Want a challenge? Try 12x12 piece puzzles!

Polar Wordsearch Puzzle Try all three levels, beginner, intermediate and advanced!

Postcards from the Field - Antartica - Send a postcard yourself!

Make an Arctic Creature Mobile! - A craft activity to print and color

 

Last modified May 2, 2011 by Jennifer Bergman.

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The Summer 2010 issue of The Earth Scientist, available in our online store, includes articles on rivers and snow, classroom planetariums, satellites and oceanography, hands-on astronomy, and global warming.

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Hands On Mineral Identification helps you to identify over 14,500 minerals! By M. Darby Dyar, Ph.D. See our DVD collection.

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