What is Ozone?
Ozone is a molecule made up of three oxygen atoms (O3) found in the Earth’s atmosphere. It plays a vital role in the stratosphere by acting as a shield against harmful ultraviolet radiation from the sun.
Types of Ozone
- Good Ozone: Ozone in the stratosphere that protects life on Earth from the sun’s harmful rays.
- Bad Ozone: Ozone at ground level that is a major component of smog and poses health risks.
Importance of Ozone
Ozone is crucial for protecting life on Earth from the harmful effects of UV radiation. It also helps regulate the Earth’s temperature by trapping heat in the atmosphere.
Ozone Depletion
The depletion of the ozone layer is primarily caused by human activities such as the release of chemicals like chlorofluorocarbons (CFCs) into the atmosphere. This depletion leads to an increase in UV radiation reaching the Earth’s surface, which can result in health issues like skin cancer and cataracts.
Case Studies
In the 1980s, the discovery of the ozone hole over Antarctica prompted international action to phase out the use of ozone-depleting chemicals. As a result, the ozone layer is starting to recover.
Statistics
According to the World Meteorological Organization, the ozone layer is projected to recover to pre-1980 levels by mid-century if countries continue to adhere to the Montreal Protocol.
