We need a radically new approach to ocean conservation, says marine biologist and TED Fellow Alasdair Harris. In a visionary talk, he lays out a surprising solution to the problem of overfishing that could both revive marine life and rebuild local fisheries -- all by taking less from the ocean. "When we design it right, marine conservation reaps dividends that go far beyond protecting nature," he says.

Alasdair Harris: How a handful of fishing villages sparked a marine conservation revolution

How a handful of fishing villages sparked a marine conservation revolution

Overfishing is an unnecessary crisis, driven by global demand yet reversible with localized, sustainable fishing practices.

Community-driven marine protection in Madagascar led to significant increases in octopus populations, boosting local economies.

Empowering small-scale fishers with rights and resources is crucial to revitalizing marine ecosystems and ensuring global food security.