Peter Ward, who spoke at the Aquarium about the impacts of climate change on June 16, 2011, is a professor of biology and space sciences at the University of Washington in Seattle. His books include "Rare Earth: Why Complex Life is Uncommon in the Universe" and "The Medea Hypothesis: Is Life on Earth Ultimately Self-Destructive"?

James Lindholm

Get in-depth information about current research in the field of oceanography in these short video podcasts from the Aquarium of the Pacific. This Long Beach, California-based institution hosts visiting lecturers in its Guest Speaker Series throughout the year. These experts share stories from the field, new insights about ocean science and predictions for the future, and knowledge they have gathered about the ocean and its inhabitants over years of study. Speakers include university researchers, explorers, acclaimed authors, journalists, nature photographers, and more.