Today, thousands of satellites orbit Earth. At the end of their missions they drop from space and burn up in Earth’s upper atmosphere.The resulting ash deposits thousands of tons of aerosols. Certain aerosols contain metal oxides and pollutants that can impact both the ozone layer and Earth’s thermal balance (heat and cooling factors).

Atmospheric scientist Dan Cziczo, an expert on aerosols and clouds, analyzes these particles that accumulate in Earth’s stratosphere, to determine their relationship to both ozone-depletion and climate change. He explains the concern about these unique space debris chemicals and their potential effect on the ozone layer and the cloud dynamics associated with climate. The studies on space debris represent a developing area of atmospheric science and is of great significance, given the continuing increase in the number of satellites.