In this Second Annual Keeling Lecture from Scripps Institution of Oceanography at UC San Diego, Lonnie G. Thompson, distinguished professor of earth sciences at Ohio State University and recipient of both the National Medal of Science and the Tyler Prize for Environmental Achievement, provides insight into the convincing evidence of climate change provided by glaciers and polar ice-caps, and the implications that inaction in the face of this rapid change will have on societies on a global scale. (58 minutes)

Dr. Steve Running, a Regents Professor in the College of Forestry and Conservation at the University of Montana, discusses the paradox of why forests in the West are growing faster while simultaneously suffering from higher die-off rates. Running is a member of the Nobel Peace Prize-winning Intergovernmental Panel on Climate Change and was the lead author on a 2007 report analyzing North AmericaŐs contribution to atmospheric carbon dioxide and its impacts on the global climate. (58 minutes)

Explore naturally occurring frozen methane deposits under the sea with renowned geochemist Miriam Kastner and discover whether or not they are a hazard to climate change. (53 minutes)

Investigations into the oceanŐs role in the global carbon cycle have taken on increasing importance as scientists strive to understand the potential impacts of global change. Join Scripps ocean chemist Lihini Aluwihare as she explains how her research is helping to understand the biology, Geology|Earth Science, and chemistry of the oceans, and ultimately the Planet. (57 minutes)

Is climate variability affected by the ongoing addition of greenhouse gasses to Earth's atmosphere? Join Dr. Chris Charles as he explains how geological archives are shedding new light on the human impact on climate. (52 minutes)

The Chukchi Sea, a broad and shallow sea between Siberia and Alaska, has a profound influence on Arctic climate and on the supply of fresh water and nutrients to the Arctic Ocean. Join Scripps Oceanography geophysicist Neal Driscoll as he presents research findings from two Arctic cruises onboard the U.S. Coast Guard icebreaker Healy that provide intriguing new insightsinto the complex climatic and sea level history of the Arctic. (55 minutes)

The sun dominates life on our Planet, yet we know astonishingly little about long-term variation in solar activity and how it might have influenced EarthŐs climate. Join Devendra Lal as he explains how chemical clues locked in Antarctic ice can reconstruct 1,000 years of solar activity and how this knowledge is critical to understanding EarthŐs climate history. (52 minutes)

Polls show that between one-third and one-half of Americans still believe that there is "no solid" evidence of global warming, or that if warming is happening it can be attributed to natural variability. Others believe that scientists are still debating the point. Join scientist and renowned historian Naomi Oreskes as she describes her investigation into the reasons for such widespread mistrust and misunderstanding of scientific consensus and probes the history of organized campaigns designed to create public doubt and confusion about science. (58 minutes)

Join Richard Somerville as he weaves critical findings in climate science into a compelling story, making the most important issues of our time understandable to all. (57 minutes)

Learn about the challenging research work of many of the fellowship students at Scripps. Hear three short presentations that represent a sampling of the broad spectrum of research work Scripps graduate students are conducting to understand climate change and its impact on Earth. (58 minutes)

Learn about the challenging research work of three outstanding fellowship students at Scripps on topics as diverse as climate science, coastal Geology|Earth Science, and deep-sea diversity as they share their research discoveries and their visions for the future of their disciplines. (59 minutes)

Learn about the challenging research work of several of the outstanding fellowship students at Scripps Institution of Oceanography. Explore topics such as antibiotics from the sea, the declining health of our oceans, mapping the seafloor, and factors affecting climate change. (57 minutes)

Carbon dioxide has been steadily increasing in the Earth's atmosphere since the industrial rEvolution. Join Dr. Tim Lueker as he describes the history of atmospheric carbon dioxide research and the role the ocean plays in global warming. Learn how Dr. Lueker and others gather data that allow them to assess these important changes in the state of our atmosphere and ocean. (54 minutes)

Ocean Waves not only provide recreation, aesthetic enjoyment and an occasional rearrangement of our shorelines, but can potentially be tapped as a source for cleaner energy. Join Scripps Institution of OceanographyŐs Richard Seymour as he describes how climate variability impacts the "wave climate" of the North Pacific Ocean. Learn how scientists and engineers are combining expertise to harness Waves as a source for renewable electric energy production. (54 minutes)

Join Dan Cayan as he describes his research on the impacts of climate variability and attempts to improve climate and extended weather forecasts in the California region. (59 minutes)

Join Dr. Lynne Talley as she describes how she and others are using decades of ocean observations from floats, research vessels, and merchant ships to discern the long-term signal of climate change that is recorded in our oceans. (49 minutes)

Increases in global carbon dioxide should be mirrored by decreases in atmospheric oxygen. Join Ralph Keeling to learn how his precise measurements have shown that the concentration of oxygen in the atmosphere is in fact decreasing slowly from year to year and discover how these data are allowing scientists to place constraints on the global carbon cycle. (57 minutes)

Join Kendall Melville as he describes his work on Waves that occur both at the surface and in the ocean's interior and learn the profound influence their energy has on oceanographic and climatic processes. (49 minutes)

The purpose of this resource is to observe the flowering and leaf stages of selected garden plants throughout the year. After a phenological garden is planted, students observe the growth of leaves and blooming of flowers on the plants. These plants were selected because each plant blooms at a different time in the year.

This collection of learning activities allows students to explore phenology, phenological changes over time, and how these changes fit into the larger context of climate change. Students explore patterns of solar radiation and seasons as well as phenological cycles and ecological affects of these patterns.