20 news posts from April 2015

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Antarctic ice core shows northern trigger for ice age climate shifts

Researchers inside a snow pit at the West Antarctic Ice Sheet drilling site in 2008.

University of Washington scientists in the Department of Earth and Space Sciences were part of a multi-institutional research team that has discovered a consistent link between abrupt temperature changes in Greenland and Antarctica during the most recent ice age. Using evidence trapped in ice cores from the West Antarctica Ice Sheet, the team from UW used analyses of oxygen molecules in the ice to uncover precise records of Antarctica’s temperature history. 

Read more at UW Today »

Exploring Earth's final frontier

Photo: T Hawkins/UW

Covering more than 70 percent of Earth’s surface, the oceans act as our planet’s heartbeat, with differences in depths, currents, temperature and salinity marking changes in its pulse. While these measurements are fairly straightforward, the information they relay about Earth’s health is much more complex. As the planet warms, much of the heat is absorbed in the oceans, resulting in rising sea levels and changes to how water mixes and currents move. 

Read more on the UW homepage »

Tidal tugs on Teflon faults drive slow-slipping earthquakes

Unknown to most people, the Pacific Northwest experiences a magnitude-6.6 earthquake about once a year. The reason nobody notices is that the movement happens slowly and deep underground, in a part of the fault whose behavior, known as slow-slip, was only recently discovered. A University of Washington seismologist who studies slow-slip quakes has looked at how they respond to tidal forces from celestial bodies and used the result to make a first direct calculation of friction deep on the fault. 

Read more at UW Today »

Wildlife vulnerabilities to climate change, lay summaries for science papers, geoducks and more: Week of April 20 published research

Ocean Wave

Each week we share the latest peer-reviewed publications coming from the College of the Environment. Over the past week, twenty-four new articles co-authored by members of the College of the Environment were added to the Web of Science database, including studies on the ionospheric precursors of earthquakes, how the are burned by fires relates to water balance, and more. Check them out!

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