The ozone layer is a region in Earth's stratosphere that contains a high concentration of ozone (O3) and plays a crucial role in absorbing the majority of the sun's harmful ultraviolet radiation. Its depletion due to human-made chemicals like chlorofluorocarbons (CFCs) has led to increased UV exposure, prompting international agreements such as the Montreal Protocol to mitigate damage.

Ozone Layer

ozone layer

Earth's stratosphere

high concentration of ozone

harmful ultraviolet radiation

Depletion of ozone layer

human-made chemicals

Chlorofluorocarbons (CFCs) are synthetic compounds once widely used in refrigeration, air conditioning, and aerosol propellants, but they have been phased out due to their role in ozone layer depletion. Their release into the atmosphere leads to the breakdown of ozone molecules, which increases ultraviolet radiation reaching the Earth and poses significant environmental and health risks.

chlorofluorocarbons

CFCs

increased UV exposure

international agreements

The Montreal Protocol is an international treaty signed in 1987 aimed at phasing out the production and consumption of ozone-depleting substances to protect the Earth's ozone layer. It is considered one of the most successful environmental agreements, achieving universal ratification and significant reductions in harmful emissions, contributing to the recovery of the ozone layer.

Montreal Protocol

mitigate damage

Understanding the Ozone Layer and Its Importance for Life on Earth

Understanding the Ozone Layer and Its Importance

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