Teen Engineer Battles Arctic Melt with Bacteria

Justin Bernstein, a 17-year-old, has developed a groundbreaking research project focused on using genetically engineered bacteria to slow Arctic ice melt. Recognized as a 2025 Davidson Fellow, he received a $50,000 scholarship for his work. Bernstein's project, titled "Implementation of Bioengineered Cryobacteria to Enhance the Glacial Albedo of Arctic Ice to Reverse Climate Change-Induced Rise in Sea Levels," employs modified Cryobacterium to produce reflective silica.

This bioengineered bacteria incorporates genes from diatoms, enabling it to create silica structures from dissolved silicon in the environment. The goal is for these bacteria to be applied to glacier surfaces, thereby increasing their reflectivity. By making the ice surfaces more reflective, the aim is to reduce the absorption of solar energy, slowing the rate of melting and consequently mitigating sea-level rise.

Bernstein's research diverges from methods using silica microbeads, which can be costly and ecologically invasive. His bacterial approach is envisioned as a low-cost, self-sustaining system, with bacteria capable of reproduction and continued silica production through freeze-thaw cycles. Climate modeling in his project suggests a significant potential impact, projecting a shift from a net annual ice loss of 9.6 x 10^9 square meters to a gain of 2.80 x 10^9 square meters.

The student's motivation stemmed from observing flooding in his coastal community, prompting him to seek solutions with both local and global relevance. His work explores how biotechnology can complement existing climate strategies by intervening in the ice-albedo feedback mechanism. This research offers a potential application of biotechnology to address environmental challenges related to glaciers, sea-level rise, and coastal vulnerability.