Polar ice sheets are sensitive indicators of current climate and also preserve evidence of past climate conditions. Scientists studying Earth's climate history core thousands of meters deep into ancient ice to retrieve gas bubbles trapped in ice sheets. Ice cores help reconstruct climatic conditions from hundreds of thousands of years ago. Join Dr. Jeff Severinghaus as he explains how gas bubbles are trapped, how they provide detailed chemical clues to the past and how they are helping to shape future climate scenarios. (45 minutes)

Climate has enormous impacts on the marine life off California, influencing its major fisheries and the abundance of krill, seabirds and mammals. Join Tony Koslow as he shows how a 60-year ocean observation program, the California Cooperative Oceanic Fisheries Investigations (or CalCOFI) is unraveling the impacts of the El Ni–o/La Ni–a cycle and human-induced climate. (52 minutes)

Coral reefs are among the most productive and biodiverse environments on the Planet. Join Scripps Oceanography marine ecologist Stuart Sandin as he describes his travels to untouched parts of the globe to conduct scientific research aimed at understanding and protecting these fragile ecosystems. Learn how he and his colleagues are working to establish the scientific basis for what constitutes a healthy coral reef and how they are probing the causes of coral reef decline. (58 minutes)

Microbes rule the reef. They determine both coral reef health and decline. Exploration of their diverse roles in these ecosystems has become possible only recently with the development of new research methods, such as metagenomics. Join San Diego State microbial ecologist Forest Rohwer as he builds his case for the role of microbes in the DDAMnation of coral reefs. His research expeditions to the remote Line Islands, including trips with Scripps scientists, have provided new insights into the mechanisms by which human activities can influence reef health; how we convert the essential microbial partners of a healthy coral reef ecosystem into coral killers. (28 minutes)

The advent of rapid methods for sequencing DNA has resulted in major advances in our understanding of the Evolution and distribution of a wide variety of marine organisms. Join Scripps researcher Ron Burton as he describes the surprising array of applications for these techniques in marine science. (56 minutes)

In the late 1970s, scientists conducting a geologic investigation of the ocean floor in the Pacific made a startling discovery - deep ocean hot springs populated by a host of organisms never before seen. Join Dr. Horst Felbeck as he describes his fascinating research into what makes life possible in this seemingly inhospitable environment. (43 minutes)

The magnitude and timing of global sea level change remains one of the outstanding questions in global change research. Join researcher Shad O'Neel for a tour of coastal glaciers and learn why scientists believe these glaciers' unique behavior will make them one of the largest contributors to sea level rise in the next century. (56 minutes)

Join Scripps Institutions' David Sandwell and explore how the topography of the ocean floor reveals the inner workings of our Planet. (49 minutes)

Explore the discovery and understanding of marine symbionts that may provide novel sources of new drugs with Scripps Institutions' Margo Haygood. (27 minutes)

The world's leaders have committed to creating a Global Earth Observing System - a massive network to provide a continuous and comprehensive picture of the Earth and its environment. This "system of systems" would provide an understanding of changing conditions on our Planet and support decision-making affecting the world's economy. Dr. Charles Kennel, Director of SIO, will describe the U.S. contributions to this international initiative and will talk about the extensive Earth observing capabilities at SIO. (59 minutes)

How is EarthŐs magnetic field important to making our Planet habitable? Where does it come from, and how quickly does it change? Join Geophysicist Cathy Constable as she delves into these and other questions about one of EarthŐs most dynamic features, the magnetosphere. Learn how research at Scripps is contributing to our ever-growing understanding of EarthŐs magnetism. (58 minutes)

Learn what nearly a century of study has taught us about Antarctica's Emperor Penguins as Scripps Institution's Gerald Kooyman shares his experiences conducting decades of research while camping on, diving under and traversing Antarctica's trackless sea ice. (29 minutes)

Join Philip Hastings, curator of the Marine Vertebrate Collection at Scripps and learn how research on fishes of the Gulf of California and Southern California is essential for guiding conservation efforts aimed at protecting marine fisheries and ecosystems. (56 minutes)

Journey millions of years back in time with Scripps Institutions' Dr. Richard Norris as he describes the latest findings from a recent Ocean Drilling Program Cruise.Ę(55 minutes)

The Earth's magnetic field varies on many time scales, waxing and waning in strength, and periodically completely reversing direction. The geologic record of these variations provides important information on the history of our Planet. Join Scripps Oceanography geoscientist Jeff Gee for a fascinating glimpse into his fieldwork in paleomagnetism Đ from autonomous aircraft measurements over the open ocean to exploration of rock exposures in remote regions of Antarctica. (54 minutes)

Dr. Kerry Key discusses electromagnetic exploration techniques in the study of the earth's upper crust and mantle at mid-ocean ridges. (43 minutes)

Explore our nearest Planetary neighbors with Dr. Catherine Johnson as she demonstrates how she uses remote sensing to delve beneath the surface of the terrestrial Planets. (57 minutes)

Join Scripps Institution's Donna Blackman as she shares a fascinating look at tectonic plate spreading and the discovery of a "lost-city" of hydrothermal vents and the unique creatures that dwell there. (46 minutes)

Join Fred Fisher, co-inventor of FLIP, or Floating Instrument Platform as he shares a unique look at this strange research vessel's rich history. (37 minutes)

Technological advancements over the last decade mean that many fish are now swimming around with their own personal computers. These new tools allow researchers to track movements and behaviors in more complex ways without ever getting wet. Join NOAA marine biologist Heidi Dewar to learn about the intriguing discoveries researchers have made and how these high-tech efforts have advanced ocean management and conservation. (54 minutes)