Space Industry leaves toxic footprint on Earth's ozone layer

As the number of satellites in low Earth orbit increases, so does the damage to our planet's protective shield.

Researchers at the University of Southern California have released a study finding that satellites are significantly damaging the Earth's ozone layer. The study shows that as satellite materials burn up upon reentry, they leave behind particle pollutants made of aluminum oxides, which are "known catalysts for chlorine activation that deplete ozone in the stratosphere."

Since 2016, these pollutants have increased by eight times, with an estimated 17 metric tons in 2022 alone.

This findings shed light on a hidden cost of the growing space industry, which includes companies like SpaceX and Amazon, who are rapidly expanding their satellite activity.

Starlink's Lead

With 6,000 satellites in low Earth orbit, Starlink, owned by Elon Musk's SpaceX, far outnumbers any other company in satellite activity. These satellites provide internet access to remote areas, yet their presence contributes to ozone depletion.

Our Protective Shield

The ozone layer, located in the stratosphere, absorbs the sun's high-energy UV radiation, protecting humans, animals, and plants from its harmful effects, which can cause skin cancer and other serious health issues.

The Environmental Protection Agency had previously forecasted a full recovery of the ozone layer within 25-35 years, but this estimate is now in jeopardy unless action is taken to reduce satellite-related pollutants.