March Highlight: Inspiring young change-maker making waves in environmental conservation - Demi Johnson

The National Geographic Society has recognized ninth grader Demi Johnson for her work restoring oyster habitats along Mississippi’s Gulf Coast. Over the past two years, Demi has grown more than 1,000 oysters, each of which has the potential to produce millions more, helping to rebuild fragile marine ecosystems.

Oyster populations in the Gulf have declined significantly due to major environmental events, including Hurricane Katrina and the Deepwater Horizon oil spill. In response, conservation efforts like oyster gardening have become increasingly important.

Through her project, Demi raises oysters in cages attached to a pier, maintaining them weekly to protect them from predators. Once mature, the oysters are placed into designated areas where they can form new reefs. Beyond restoration, oysters play a critical role in marine ecosystems. According to Demi, oysters act as natural water filters and can support habitats for over 300 species.

Demi began this work as part of a Girl Scout community project and has since expanded her efforts, growing from five to nine oyster cages. With mentorship from a researcher at Auburn University, she continues to deepen her knowledge and impact.

Looking ahead, Demi hopes to study environmental law and advocate for environmental protection. Her story is a powerful reminder that meaningful change can start at any age.

Source: PBS NewsHour interview with Demi Johnson, reported by John Yang