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Expert Speaks at USD April 20 on Climate Change Findings from Study of Polar Ice Cores

27th Annual Lifto Amundson Lecture Highlights Phi Beta Kappa Initiation and Humanities Teaching Award Presentation

Ed Brook Brook

VERMILLION, S.D. – Professor Ed Brook of Oregon State University will explain his findings on global climate change based on the study of air bubbles trapped in ancient polar ice during a lecture at the University of South Dakota on April 20.

His presentation, “History of Greenhouse Gases and Climate from Polar Ice Cores: Lessons from the Past, Thoughts for the Future,” will be presented at 7:30 p.m. in Beacom Hall Auditorium, Room 133. The talk highlights the USD initiation of new members of Phi Beta Kappa, the nation’s oldest academic honor society, dedicated to liberal arts education and freedom of thought and expression.

Brook has conducted field research in Antarctica, Greenland, Scandinavia, northern Canada and the western United States and runs one of the few laboratories dedicated to the study of gas bubbles frozen in polar ice. He is a Leopold Leadership Fellow, a Google Science Communication Fellow, and a fellow of both the American Association for the Advancement of Science and the American Geophysical Union.

Brook’s research has shown that human activities have radically altered the levels and cycles of major greenhouse gases, pushing the atmosphere toward a state it has not seen for at least 50 million years. His work has contributed to the scientific understanding of how quickly climate can change. Ongoing research seeks to understand what causes these shifts, their timing and impact, and the probability of similar climate changes in the future.

His presentation is the 27th in the Lifto Amundson Lecture series, established in 1988 by Majorie Lifto Amundson and her son, Dr. Loren H. Amundson of Sioux Falls. The Lifto Amundson program brings distinguished speakers to USD each year from disciplines in the liberal arts and sciences. Both Mrs. Amundson and her son were members of Phi Beta Kappa at USD. Dr. Amundson received his M.D. degree in 1954 and was named a Distinguished Alumnus in 2004.

For more information about Dr. Brook’s lecture contact the USD Department of Earth Sciences at 605-677-5649.

Download a photo of Dr. Brook.


USD's College of Arts & Sciences offers students a top-notch undergraduate liberal arts education in the humanities, social sciences and sciences as well as graduate programs that have earned USD distinction as a research university by the Carnegie Foundation. The college's more than 22,000 alumni include famous journalists, Hollywood screenwriters, novelists, a Nobel Prize winner, South Dakota governors, attorneys, physicians, justices of the state Supreme Court, distinguished university faculty and international humanitarians.


Founded in 1862 and the first university in the Dakotas, the University of South Dakota is the only public liberal arts university in the state, with 202 undergraduate and 78 graduate programs in the College of Arts & Sciences, School of Education, Knudson School of Law, Sanford School of Medicine, School of Health Sciences, Beacom School of Business and College of Fine Arts. With an enrollment of nearly 10,000 students and more than 400 faculty, USD has a 16:1 student/faculty ratio, and it ranks among the best in academics and affordability. USD’s 18 athletic programs compete at the NCAA Division I level.

This material is available in an alternate format upon request. Please contact University Relations at 605-677-5759. If you are a person with a disability and need a special accommodation to fully participate in any university activity or event, please contact Disability Services at 605-677-6389 as soon as possible, but no later than 48 hours before the event, so that appropriate arrangements may be made.


Hanna DeLange
USD News