Karl K. Turekian, Director
Sterling Professor, Department of Geology and Geophysics

GLOBAL CHANGE SEMINAR SERIES 

The weekly Topics in Global Change Seminar Series continues through the Winter and Spring of 2009.

Unless otherwise noted, seminars are held on Mondays, from 2:00 to 3:30 PM in Room 102, Kline Geology Laboratory, 210 Whitney Avenue.

Winter/Spring 2009 Schedule

With emphasis on the conditions of the Precambrian oceans and atmosphere 

*Note the extra lectures scheduled for 10:30 AM in 102 KGL

January 12, 2009	Jun Korenaga, Yale University: "Mantle composition, plate tectonics, and the evolution of Earth's oceans"
January 19, 2009	No session:  Martin Luther King Day
January 26, 2009	H.D. Holland, University of Pennsylvania: "Why the atmosphere became oxygenated"
February 2, 2009	Richard Carlson, Department of Terrestrial Magnetism, Carnegie Institution of Washington: "Early Earth differentiation and the onset of plate tectonics"
February 9, 2009	Mukul Sharma, Dartmouth College: “Where on Earth is the enriched Hadean reservoir?”
February 16, 2009	Paul Knauth, Arizona State University: "Temperature and salinity history of the Earth's early ocean"
*February 17, 2009 - 10:30 AM in KGL 102	Paul Knauth, Arizona State University: "The Late Precambrian Greening of the Earth: Implications for the Cambrian Explosion of Life"
February 23, 2009	Eric Gaucher, Georgia Tech: “Resurrecting proteins to understand Precambrian temperature trends for ancient life”
March 2, 2009	Marc Chaussidon, Centre de Recherches Petrographiques et Geochimiques (CNRS) Nancy: "Micrometer-scale O and Si isotope variations in Precambrian cherts : implications on the temperature of the Precambrian oceans"
March 23, 2009s	Huiming Bao, Louisiana State University: "Anomalous depletion of sulfate oxgen-17 and implications for the 'snowball Earth' hypothesis"
March 30, 2009	Mike Hren, Yale University: "Oxygen and hydrogen isotopes of the Buck Reef Chert: Evidence for a temperate ocean 3.42 billion years ago?"
April 6, 2009	Karlis Muehlenbachs, University of Alberta: "Oxygen isotopic composition of the Archean Ocean, insight from the basalts and cherts of Barberton Mt. Land, South Africa and Isua Greenland"
April 13, 2009	Shuhei Ono, MIT: "Archean sulfur mass-independent fractionation records for whiff(s) of oxygen before the great oxidation event"
April 20, 2009	James Kasting, Penn State:  "Methane, oxygen, and climate on the Archean Earth"
*April 22, 2009 - 10:30 AM in KGL 102	Paul Hoffman, Harvard University  "The Pleistocene glacial controversy and the discovery of climatic warming and crustal movements"
In addition to the the weekly Topics in Global Change Seminar Series, the Center for the Study of Global Change has sponsored a number of forums at Yale.  Listed below are the most recent forums, with links provided for more information and to view presentations:           Forum on Solar Variability and           Climate Change - March 28 and           March 29, 2008           For copy of program (word doc),           To view program, click here Forum on Ocean & Climate April 11 and April 12, 2008 To view program, click here The Forum on Carbon Sequestration: Is It Feasible?, sponsored by YIBS' Center for the Study of Global Change, was held on Friday, April 7 and Saturday, April 8, 2006 at the Environmental Science Center To view presentations, click here. The Forum on Climate and Disease, sponsored by YIBS' Center for the Study of Global Change and Center for EcoEpidemiology, was held on Friday, December 9 and Saturday, December 10, 2005 at Luce Hall Auditorium. To view videos of talks, click here. The Forum on Global Climate Change Components, sponsored by YIBS' Center for the Study of Global Change, was held on Friday, October 29 and Saturday, October 30, 2004 at the Environmental Science Center. To view presentations, click here.