Sylvia Earle

Sylvia Earle is the only human to have ever walked alone on the ocean floor. Deeper than the Empire State Building is tall.

1,250 feet. 2.5 hours.

No line. No rescue tether.

Just a pressurized JIM suit and her own two feet.

People call Sylvia “Her Deepness” for a reason.

But Sylvia Earle didn’t just break records…

By 20, she had a master’s in botany.

By 30, she’d logged more underwater research hours than any of her male peers.

But when she applied to live underwater in the U.S. Navy’s Tektite Project in 1969, they rejected her.

Because she was a woman.

So the next year, she led her own team.

In 1970, she took five women 50 feet below the surface to live underwater for two weeks.

They studied coral, documented marine life, and proved women could do the job as well as any man.

The country took notice.

Parade in Chicago. Invite to the White House. Headlines everywhere.

And Sylvia used the spotlight to push ocean conservation.

She co-founded Deep Ocean Engineering and Deep Ocean Technologies with submersible designer Graham Hawkes.

Their team built Deep Rover, a sub that could reach 1,000 meters.

She later founded DOER Marine, now run by her daughter Elizabeth.

In 1990, she became the first female Chief Scientist at NOAA, where she led assessments after the Gulf War oil spill.

By 1998, she was National Geographic’s first female Explorer in Residence.

She’s authored 200+ publications. Lectured in 80+ countries. Led over 100 expeditions. Spent 7,000 hours underwater.

She was in “Gentle Giants of the Pacific,” “Mission Blue,” “Seaspiracy,” and even “SpongeBob” bonus features.

In 2009, she won the TED Prize and used it to launch Mission Blue, a nonprofit to establish marine protected areas called “Hope Spots.”

The goal: protect 30% of the ocean by 2030.

As of now, 122 Hope Spots exist.

Covering places like the Galápagos, Sargasso Sea, Belize, and the Verde Island Passage in the Philippines.

Yes, she’s still diving at 90.

In 2024, she visited the VIP and gifted a signed copy of her book Ocean: A Global Odyssey to Philippine officials as part of a marine biodiversity campaign.

She now serves on the advisory board of Climate Cardinals, a youth-led climate org, and backs legislation to classify ecocide as an international crime.

Her work has earned her over 100 honors: Time’s first Hero for the Planet (1998), UN Champion of the Earth, and the Rachel Carson Award.

She calls phytoplankton the planet’s unsung heroes.

They produce oxygen, absorb carbon, and form the base of the ocean’s food web.

But rising acidity and industrial fishing are pushing ocean ecosystems toward collapse.

And Sylvia Earle is fighting back.