The Ocean Conservancy underscores the ocean's fundamental role in planetary health. It sustains us daily with food, water, and air, connecting all living things. Recognizing this vital link, the organization advocates that true environmentalism—"going green"—begins with "living blue."

It's time to initiate a significant "sea change" in our approach to global well-being.

Actor Adrian Grenier recently swam alongside bluefin tuna, highlighting their incredible speed as one of the ocean's fastest fish. These highly sought-after sushi fish are a vital part of marine ecosystems.

However, bluefin tuna populations are rapidly declining. Without urgent conservation efforts, these magnificent creatures, which zipped past Grenier, face the risk of disappearing forever. Protecting them is crucial.

Author David Helvarg discusses his book, *Rescue Warriors*.

The book highlights the U.S. Coast Guard, portraying them as America's forgotten heroes.

Environmental activist David Helvarg discusses his book, *50 Ways to Save the Ocean*. He explains how small, individual conservation efforts can significantly contribute to environmental preservation.

The full program is available on Fora.tv.

NASA's MODIS instrument, aboard the Terra and Aqua satellites, captured images of the Deepwater Horizon oil spill in the Gulf of Mexico. The spill began on April 20, 2010, following the rig's explosion.

A short video provides a space-based view of the burning rig and the ensuing oil slick through May 24, 2010. The slick, appearing grayish-beige, changed due to weather, ocean currents, and chemical dispersants.

The full image archive is available on the MODIS Rapid Response Web site: http://rapidfire.sci.gsfc.nasa.gov/. Credit: http://svs.gsfc.nasa.gov/goto?10562

On May 24, 2010, Good Morning America featured correspondent Sam Champion and Philippe Cousteau Jr.

They explored the toxic plumes of dispersed oil floating beneath the waves in the Gulf of Mexico.

Marine life has long faced unchecked exploitation. Rapid technological advances have equipped vessels and equipment with unsustainable power and reach, far exceeding nature's ability to maintain marine populations.

If this continues, the consequences for the marine environment and dependent communities will be severe. For more information, visit Greenpeace's oceans campaign.

The National Resources Defense Council (NRDC) presents a documentary exploring ocean acidification, a startling phenomenon that threatens marine life on a scale not seen for tens of millions of years. Featuring Sigourney Weaver, the film originally aired on Discovery Planet Green.

Additional videos are available on the NRDC YouTube channel.