The hole in the ozone layer was caused primarily by CFCs.

Question

Quizplus · Accepted Answer

The hole in the ozone layer was primarily caused by chlorofluorocarbons (CFCs), which were used as refrigerants, propellants in aerosol cans, and in the production of foam packaging, insulation, and other products. When released into the atmosphere, these chemicals would eventually break down and release chlorine atoms, which then destroyed ozone molecules. This process led to a thinning of the ozone layer, particularly over Antarctica, and raised concerns about increased skin cancer rates, damage to crops and ecosystems, and other environmental and health effects. To address this issue, countries around the world signed the Montreal Protocol in 1987, which led to the phase-out of most CFC production and use, and a gradual recovery of the ozone layer in subsequent years.

The Hole in the Ozone Layer Was Caused Primarily by CFCs