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)

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)

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)

Peak oil may have come and gone, yet we are using oil faster than we are discovering it and have only just begun to think about alternatives. Join Scripps Oceanography geophysicist Steve Constable and learn how he is using sophisticated marine electromagnetic techniques to find dwindling offshore reserves during our transition from the hydrocarbon age to beyond petroleum. (54 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)

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)

In this video, David explains what a photon is and how to determine the energy of a photon. Created by David SantoPietro.

Students learn about the basic principles of electromicrobiology—the study of microorganisms’ electrical properties—and the potential that these microorganisms may have as a next-generation source of sustainable energy. They are introduced to one such promising source: microbial fuel cells (MFCs). Using the metabolisms of microbes to generate electrical current, MFCs can harvest bioelectricity, or energy, from the processes of photosynthesis and cellular respiration. Students learn about the basics of MFCs and how they function as well as the chemical processes of photosynthesis and cellular respiration

Through a series of four lessons, students are introduced to many factors that affect the power output of photovoltaic (PV) solar panels. Factors such as the angle of the sun, panel temperature, specific circuit characteristics, and reflected radiation determine the efficiency of solar panels. These four lessons are paired with hands-on activities in which students design, build and test small photovoltaic systems. Students collect their own data, and examine different variables to determine their effects on the efficiency of PV panels to generate electrical power.

This video reviews how photovoltaic (PV) cells work, noting that technological innovations are decreasing costs and allowing PV use to expand.

A complete introduction to scientific investigation and the scope of physical science. Includes: states of matter, atoms, periodic table, chemical bonding, chemical reactions, carbon chemistry, chemistry of solutions, nuclear chemistry, motion, forces, Newton's Laws of Motion, work and machines, energy, waves, sound, electromagnetic radiation, visible light, electricity, and magnetism.

In these videos from Spring 2022, Dr. Mahmoud Hammouri in provides illustrative examples for students to use while completing assignments. Examples include: Vertical motion example 1; Vertical motion example 2; Projectile motion example; Try it: projectile motion; Vectors review; Vector addition part 1; Vector addition part 2; Try it: Vectors; Horizontal motion example 1; Horizontal example 2; Try it: horizontal motion; Distance and displacement; Try it: distance and displacement; Newton's 2nd law applications: Example 1; Newton's 2nd law applications: Example 2; Newton's 2nd law applications: Example 3; Newton's 2nd law applications: Example 4 part 1; Newton's 2nd law applications: Example 4 part 2; Work and kinetic energy examples; Loop-the-loop track example; Spring-mass system example; Try it: Mass-spring system; Mass-spring system; Try it: Runaway truck; Solid and hollow spheres sliding without slipping; Atwood's machine; Acceleration of a rolling sphere; Primitive yo-yo; Collision of two pucks