Current Events

  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.
  • Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows
    Scientists have determined the temperature near the Earth’s center to be 6000 degrees Celsius, 1000 ...Read more

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    Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows

    Scientists have determined the temperature near the Earth’s center to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models that the temperature difference between the solid core and the mantle above, must be at least 1500 degrees to explain why the Earth has a magnetic field. For more information about this study, see the press release from the European Synchrotron Radiation Facility.
  • Ocean Volcanic Rocks Contain Samples of Recycled Crust
    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials fr...Read more

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    Ocean Volcanic Rocks Contain Samples of Recycled Crust

    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth’s crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including Carnegie’s Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is published in Nature. Oceanic crust sinks into the Earth’s mantle at so-called subduction zones, where two plates come together. Much of what happens to the crust during this journey is unknown. Model-dependent studies for how long subducted material can exist in the mantle are uncertain and evidence of very old crust returning to Earth’s surface via upwellings of magma has not been found until now. For more information about these results, see the press release from the Carnegie Institution.
Dr. Thompson received her PhD from Bryn Mawr, her Masters from Princeton, and a Bachelors of Science from Swarthmore.

Anne Thompson

I'm a scientist who specializes in tropospheric ozone (the ozone we consider to be pollution). In particular I work on experimental campaigns where balloons are launched with small devices attached to measure ozone from the ground up to 30km. These ozonesondes give us a very detailed look at ozone in the atmosphere. Since the late 90's I've been the principal investigator of the Southern Hemisphere Additional Ozonesonde Network, or SHADOZ for short. My primary responsibilities on this project involve coordinating the weekly launches of ozonesondes at many locations throughout the southern hemisphere. By combining all these measurements together, we can get a very good idea of general trends in tropospheric ozone throughout the entire globe.

Although I am a chemist by trade, my PhD was actually in physical chemistry. I had no idea when I began school that I'd be studying ozone in the atmosphere. The work I do now is a long way away from the days and nights spent titrating chemicals in graduate school. Launching balloons is certainly more fun, but I'm very glad for the strong chemistry background I obtained in school.

In addition to chemistry, I love traveling, which is one of my favorite perks about this job. I've launched ozonesondes in Africa, on cruises in the Atlantic, and visited many other exotic tropical locations where our balloons are launched.

Visit my research page (http://www.meteo.psu.edu/~jstone) at Penn State, to learn more about my research, and many of the wonderful folks I work with.

Last modified February 20, 2006

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