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Filmed on Tuesday May 20, 02014
Sylvia Earle is a marine biologist, explorer, author, and lecturer. She was the first female chief scientist of the U.S. National Oceanic and Atmospheric Administration, and has been a National Geographic Explorer-in-Residence since 01998. Her books include The World is Blue: How Our Fate and the Ocean's Are One.
Tierney Thys, a National Geographic Emerging Explorer, is a marine biologist with a doctorate in biomechanics. She has worked with Earle and studies Mola molas (giant sunfish) in addition to her work with Sea Studios Foundation, a documentary film company.
Land animals on an ocean planet, we have a lot to learn about how the world works. The microbes of the sea are Earth’s dominant life form. Ocean currents and temperatures drive climate and weather. Come ride a current to view bad news (dead zones, rising sea levels, melting sea ice, acidification, coral bleaching, fish piracy and overfishing) and good news (marine protected areas, functional ecosystems, megafaunal migrations, mid-Atlantic ridge, community involvement, citizen scientists) and continuing mysteries. Land is mercurial. Ocean abides.
Two of the most eloquent voices of ocean science are Sylvia Earle and Tierney Thys. Both are National Geographic Explorers, both are stars of the TED stage. They have collaborated on original and adventurous research. For this talk they are collaborating to tell (and show) sea stories of deep waters, the deep past, and the deep future.
Neither of them eats fish.
Both marine biologists applaud the improved regulation of American fishing and the resulting recovery of important fisheries, but they note that 90% of our seafood is imported, and one-third of that is caught illegally. Two-thirds of global fisheries are overfished. Eating a tuna, Earle points out, is like eating a wolf or a tiger. It is a magnificent predator often decades in age. We no longer commercially harvest wildlife on land. Why do we do it in the sea?
Noting that 15% of land has become protected in the last 100 years, the speakers said we have just started on protecting the ocean. About 3% is now protected, in 8,000 Marine Protected Areas. The goal is 20% by 2020. One hero of the movement is Palau’s president Tommy Remengesau, who this year declared that commercial fishing would be banned in its entire ocean economic zone—230,000 square miles. Likewise New Caledonia just created a 500,000 square mile “Natural Park of the Coral Sea.”
Ocean science keeps yielding profound discoveries. A sea-going photosynthetic bacteria named Prochlorococcus was identified as recently as 1986, yet it may be the most abundant photosynthetic species on Earth, responsible for 5-10% of all the oxygen in the atmosphere. Without their ancestors we wouldn't exist. Deep-diving Earle noted that daylight only reaches about 1,000 feet down in the ocean. Most of the world’s life therefore lives in total darkness, and “bioluminescence is the most common form of communication on Earth.”
Thys observed that the greatest need is for coordinated, consistent remote-sensing in the ocean, and that is increasingly being provided by small robots that travel on their own on and under the surface, sending their data to satellites as well as cabled observatories. Small satellites also are multiplying, providing daily, detailed information from above. Citizen science is growing along with the Maker movement.
“Life came from the ocean,” Thys concluded. “And the life in it continues to nurture life everywhere. We owe the ocean some nurture back.”--Stewart Brand
Condensed ideas about long-term thinking summarized by Stewart Brand
(with Kevin Kelly, Alexander Rose and Paul Saffo) and a foreword by Brian Eno.
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