Chemistry
Radical Reactions in Atmospheric Chemistry: CFC Breakdown and Ozone Depletion
Quick fact
A single chlorine atom released from a CFC molecule can destroy up to 100,000 ozone molecules before it is removed from the stratosphere.
Why this is interesting
Sunscreen protects your skin from UV rays, but the ozone layer is Earth's natural sunscreen. What if a molecule you can't see or smell has been quietly ripping holes in that protective shield?