Stratospheric Ozone Depletion

Stratospheric ozone depletion refers to the thinning of the ozone layer, a region in the Earth's atmosphere that protects us from harmful ultraviolet (UV) radiation from the sun. This depletion is primarily caused by chemicals called chlorofluorocarbons (CFCs), which were once common in refrigeration, air conditioning, and aerosol sprays. When these chemicals reach the stratosphere, they release chlorine and bromine atoms that destroy ozone molecules. Reduced ozone means more UV radiation reaches the Earth's surface, increasing risks of skin cancer, cataracts, and environmental damage. Efforts like the Montreal Protocol have helped reduce CFC emissions and protect the ozone layer.