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.
This global montage is created and updated every 6 hours using satellite data, sea surface temperatures, and observed land temperatures.
Click on image for full size
Courtesy of the Space Science and Engineering Science Center, University of Wisconsin - Madison.

Atmospheric Science Literacy - Essential Principle 3

Atmospheric circulation transports matter and energy.

Fundamental Concept 3.1
Horizontal and vertical energy imbalances in the Earth System produced by unequal heating of Earth's surface create movement in the atmosphere and the ocean.

Fundamental Concept 3.2
Energy is exchanged within the atmosphere, as well as gained and lost across its interface with land and ocean through physical, geological, and biological processes organized in Earth System cycles (e.g. the water cycle). These exchanges help drive atmospheric circulations.

Fundamental Concept 3.3
Patterns of circulation in Earth's atmosphere can be observed at many different spatial scales from global to local. Temperature differences, the rotation of Earth on its axis, and the configuration of the continents and oceans establish the large-scale atmospheric circulation.

Fundamental Concept 3.4
Atmospheric transport of water affects the formation and development of clouds, precipitation, and weather systems, which are all important components of the global water cycle.

Fundamental Concept 3.5
Atmospheric circulations distribute matter and energy globally and establish weather and climate patterns.

Last modified July 29, 2009 by Becca Hatheway.

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The Winter 2009 issue of The Earth Scientist, focuses on Earth System science, including articles on student inquiry, differentiated instruction, geomorphic concepts, the rock cycle, and much more!

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