Against the backdrop of the devastating 1930's Dust Bowl, this video segment adapted from Interactive NOVA profiles an organic farmer and the techniques he uses to conserve topsoil.

Have we overstepped Mother Earth's boundaries? What are the consequences? In this video segment adapted from Haskell Indian Nations University, hear a Native perspective on our relationship with the natural environment.

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)

Just as there are fronts in the atmosphere there are fronts in the ocean. Ocean fronts separate regions of warm and cool water, as well as salt and fresh water. and are often sites of robust biological productivity. Join Scripps Institutions' Dan Rudnick on an exploration of what observations teach us about the weather of the ocean. (39 minutes)

The rate of global sea level rise and its causes has been debated for a century.Ę Despite 100 years of scientific scrutiny, no definitive conclusion has been reached.Ę Join Dr. Walter Munk as he describes why 20th century sea level rise remains an enigma, and why scientists still grapple with whether seawater warming or continental ice melting had the greatest influence. (53 minutes)

Join climate modeling expert Guillermo Auad as he explains the various kinds of models that researchers use to understand and forecast climate scenarios and how this science has impacts well outside of the research community. (46 minutes)

The growth of Chinese and Indian economies is improving their well being, but at a very high environmental cost. Widespread air pollution and greenhouse gases are having a range of complex effects on both regional and global climate. Join Scripps Oceanography atmospheric science researcher V. Ramanathan as he explains that while science can offer practical solutions, the effectiveness of these strategies will hinge on global cooperation and immediate implementation. (54 minutes)

Climate researchers have long understood that human induced changes to Earth's atmosphere should impact climate in the polar regions earlier and more dramatically than in most other places. Explore the unique meteorology, oceanography, and ecology of both the Arctic and Antarctic with Dr. Dan Lubin as he describes observations that indicate unmistakable signs of anthropogenic climate change in both the Arctic and Antarctic. (46 minutes)

Join Scripps Institution of OceanographyŐs Robert Pinkel as he provides a window into the cold world of Arctic oceanography and illustrates how the interplay between sea ice and ocean circulation impacts Earth's climate. (51 minutes)

Join Scripps' Institutions Neal Driscoll as he presents new high-resolution images of landscapes and seascapes providing clearer understandings of the link between formative processes and their signatures in the geologic record. (52 minutes)

As part of an NSF-funded collaboration with Woods Hole Oceanographic Institution and science centers across the country to increase awareness of polar research and Earth's polar regions, join Donna Blackman, chair of the National Science Foundation's Ridge 2000 program, for an exciting excursion to the worldŐs mid-ocean ridge volcanic system. Learn how these oceanic spreading centers shape our Planet and support an amazing abundance of life in an otherwise inhospitable environment. (29 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 Charles Kennel, the Director of Scripps Institution of Oceanography in a fascinating review of how scientific understanding of the Aurora Borealis has developed, from the beginning of the scientific rEvolution to the modern space age. (49 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)

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)

This video segment adapted from A Science Odyssey uses animation and archival footage to provide an overview of the theory of plate tectonics.

This video segment adapted from NOVA uses animation to show the relationship between the movement of a tectonic plate and whether volcanoes on the Hawaiian Islands are active or dormant.