TED Talk - Sylvia Earle

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TED Talk - Sylvia Earle
2010-12-18 19:05:48

Covering material from TED Talk by Sylvia Earle for Bio 2484
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  1. Why should we listen to Sylvia Earle?
    She has been at the frontier of deep ocean exploration for four decades. She has lead more than 50 undersea expeditions, and she’s been an equally tireless advocate for our oceans.
  2. What percentage of the ocean’s fish have we harvested?
    We’ve eaten more than 90% of the big fish in the sea.
  3. How much coral reef has disappeared in the last 50 years?
    Nearly half of the coral reefs have disappeared.
  4. Why is the ocean so important to Earth?
    Most of the oxygen in atmosphere is generated in the sea. Most of the world’s organic carbon is stored there by microbes. Oceans stabilize temperature. Oceans provide home for 95% of life on Earth.
  5. How is global warming affecting the ocean?
    Global warming is changing the chemistry of the oceans, making them more acidic.
  6. According to Sylvia Earle, what is the best way to protect our oceans?
    Protected areas are the best way to prevent the destruction of the ocean, particularly a large network.
  7. What percentage of oceans is currently protected?
    Only 80% of 1% of the world’s oceans are currently protected.