The Global Environmental Change Focus Group sponsored the 2012 Stephen Schneider Memorial Lecture at the 2012 Fall AGU meeting on Thursday, 6 December, 2012, 1340h-1440h, in room Moscone West 2022-2024.

Dr. Schneider, the Melvin and Joan Lane Professor for Interdisciplinary Environmental Studies, professor of biological sciences, professor (by courtesy) of civil and environmental engineering, and a senior fellow in the Woods Institute for the Environment at Stanford University, died on 19 July 2010 at the age of 65 while traveling in Europe.

Dr. Warren M. Washington, Senior Scientist in the Climate and Global Dynamics Division, National Center for Atmospheric Research, presented the 2012 lecture on the topic "The Transformation of Climate Models to Earth System Models and their Role in Policy Development and Decision Support". The lecture is available for viewing here on the AGU's Video-on-Demand website.

The inaugural Stephen Schneider Memorial Lecture, presented in 2010 by Dr. Michael Oppenheimer, Princeton University, on the topic "Scientists, Expert Judgement, and Public Policy: What is Our Proper Role?" can be viewed on the AGU video archive website at

http://www.agu.org/meetings/fm10/lectures/lecture_videos/GC33D.shtml

or downloaded at

http://www.agu.org/meetings/fm10/lectures/lecture_videos/GC33D.zip.

The 2011 Stephen Schneider Memorial Lecture, presented by Dr. Ben Santer, Lawrence Livermore National Laboratory, titled "A Tribute to Stephen H. Schneider and an Example of 'Setting the Scientific Record Straight'" can be viewed on the AGU video archive website at

http://fallmeeting.agu.org/2011/scientific-program/sessions-on-demand-8-december.

This annual lecture offers a historical perspective on global environmental change. The lecture is named in honor of 19th century Irish-born scientist John Tyndall FRS, whose measurements in the mid-century confirmed the significance of the greenhouse effect, which had been first hypothesized by French mathematician/physicist Joseph Fourier in 1824. The 2012 lecture was presented by Raymond Pierrehumbert, Professor of Geophysical Sciences at the University of Chicago, on Thursday, 6 December, 2012, 1440h-1540h, in room Moscone West 2022-2024.

The title of Professor Pierrehumbert's talk is "Successful Predictions".

The lecture can be viewed here on the AGU's Video-on-Demand website.

At the 2012 AGU Fall Meeting, the GEC Focus Group sponsored a Special Lecture in Ocean Acidification: Consequences of Excess Carbon Dioxide in the Marine Environment. The lecture was presented by Kenneth Caldeira, faculty member of the Carnegie Institution of Washington's Department of Global Ecology (Stanford, California), on Thursday, 6 December, 2012, 1600h-1700h, in room Moscone West 2022-2024.

The title of Dr. Caldeira's talk is "Ocean Acidification: Adaptive Challenge or Extinction Threat?".

The lecture can be viewed here on the AGU's Video-on-Demand website.

In addition to the three lectures named above, five additional oral presentation sessions sponsored by the GEC at the AGU Fall Meeting 2012 have been preserved for later viewing on the AGU Video On-Demand website. These sessions, which can be viewed by clicking on the Video On-Demand link, include:

GC13E. The National Climate Assessment: Draft Findings, Building Capacity, and Implementing a Sustained Process (Video On-Demand)

GC14C. The North American Regional Climate Change Assessment Program: Studies Based on NARCCAP Simulations (Video On-Demand)

GC51H. The Anthropocene and Confronting the Prospects of a +4 degree C World (Video On-Demand)

GC52A. Mechanisms of Past and Future Droughts in the Southwest United States and Investigation of Past and Future Changes in the Hadley Circulation (Video On-Demand)

GC53D. Climate Engineering and Carbon Sequestration Monitoring II (Video On-Demand)