Watch this exploration of the extremes of the polar and tropic oceans. Uncover the differences in productivity, biodiversity, and geology. Recognize the human and natural threats to the tropical and polar oceans.
Ocean currents transfer water and heat from tropical to polar regions and influence weather, climate, and biological activity in the upper-water regions. Watch the exploration of El Nino as an illustration of the effects of ocean currents on climate.
Currents play a vital role throughout the marine environment, transporting water, heat, and nutrients to every part of the world ocean. Learn about the forces that generate ocean currents and water masses.
Watch this exploration of the disturbing forces that initiate movement of energy through the water, forming and propagating surface and internal waves. See the effects of extreme wave activity and wave climates.
This video explores the sequence of events from which tsunamis develop, and looks at their catastrophic results. Hear how tsunami warning center are working to predict and educate about tsunamis. Examine the concerns about rising sea level.
Impact of human activity on coastal areas of the California coast. Learn how regulatory agencies, scientists, and others are working to mitigate negative effects of urbanization, agriculture, and various natural factors.
Survey the major physical, biological, energy, and non-extractive resources of the oceans. Recognize the economic worth of these resources. Examine means of extraction, distribution, abundance, present status, and future prospects.
Even natural materials can be problematic to the ocean environment, and sometimes cleanup can be more damaging than the polluting event. This video examines pollution and pollutants on both a local and global level.
Watch this exploration of the work of oceanographers. Hear what motivates them to pursue the career. Understand the critical role of technology in their research. Delve into the challenges and joys they experience in their work.
Watch this exploration of the profound influence water has had on our planet--from the Big Bang theory to the formation of planet Earth through the origins of life. What role did the ocean play in setting the stage for the early evolution of life?