“Internal waves,” large waves that break underwater, can displace the ocean’s layers, mixing cold, nutrient-rich water below with the waters above. Matthew Alford of the Scripps Institution of Oceanography introduces these waves, describes the technology used to observe them and discusses their three primary impacts: interfering with submarine navigation, divers and offshore structures; fueling biological production and redistributing algae and larvae by transporting ocean nutrients into shallow coastal regions; and predicting climate change in conjunction with computer simulations of the ocean. Series: "UC San Diego Founders’ Symposium" [Science] [Show ID: 29029]

A distinguished Earth scientist with extensive national and international experience in ocean science, global climate, and environmental issues, Margaret Leinen is director of Scripps Institution of Oceanography. Take an up close look at how some of the latest research activities at Scripps Oceanography are helping to shape worldwide conversations about the future of our planet. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 29092]

Concerns about climate change have distracted scientists and governments from the steps we can take now to make an enormous difference to coral reef health and increase reefs’ resilience to future climate shocks. Don’t miss this opportunity to hear acclaimed scientist Jeremy Jackson explain why there is hope for these vulnerable ecosystems in a global ocean that is increasingly impacted by humans. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 29091]

Understanding how humans impact marine ecosystems is crucial to developing successful conservation strategies that protect the health of our ocean. Discover how Scripps marine ecologist Jennifer Smith and her team are conducting research relevant to solving human-induced problems in environments ranging from coral reefs to the waters off our shores. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 28675]

El Niño is a phenomenon that impacts weather and climate around the globe. Join Scripps climate scientist David Pierce to learn what an El Niño event is, how it affects weather and water supply locally and throughout California, and how scientists forecast the likelihood of El Niño events. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 28673]

Sharks migrating between California and Baja California, Mexico, are threatened by commercial fishing activity in both countries. Join Scripps shark expert Dan Cartamil as he explores the ecology and behaviors of these fascinating animals, and discusses the issues relevant to the sustainability of our local shark populations. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 28256]

Crustaceans, with their hard, protective outer skeleton and highly specialized limbs, are truly evolutionary wonders. Join Scripps Oceanography marine biologist Jennifer Taylor as she describes her research on crustacean biomechanics and tells us how 500 million years of evolution has shaped crustaceans into the remarkable array of animals we see on Earth today. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 28255]

Drilling down thousands of meters into the ancient ice preserved on earth’s massive continental ice sheets, scientists can extract a wealth of information about our climate history—including periods both much colder and considerably warmer than today. Ice, dust, and tiny gas bubbles in Greenland and Antarctic ice provide myriad clues into the complex workings of earth’s climate system. Join Jeff Severinghaus as he describes how he delves into earth’s climate past to gain insight into our climate future. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 27845]

Many marine animals produce a wide variety of audible as well as infra- and ultra-sonic sounds for navigating, finding food, mating and many other vital behaviors. With human use of the world’s oceans on the rise, background noise levels in the marine realm are increasing. Join Ana Sirovic as she discusses how ocean noise varies across the Pacific Ocean and what it may mean for whales, fish, and other animals that rely on sounds for their survival. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 26001]

Marine animals like the elusive beaked whale are notoriously difficult to study, as they are rarely seen. Fortunately, scientists can hear them! These animals use echolocation to forage and those sounds can be recorded in even the most remote and inaccessible areas of the ocean. Join Simone Baumann-Pickering as she details how patterns of echolocation are allowing scientists to document the natural acoustic behavior of a species, and determine if those natural patterns are being disturbed by man-made noise. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 26000]