What is the significance of the ozone layer?

The significance of the ozone layer primarily lies in its ability to protect Earth from harmful ultraviolet (UV) radiation emitted by the sun. This layer, located in the stratosphere, contains a high concentration of ozone (O₃) molecules which absorb most of the sun's harmful UV rays. Without this protection, increased exposure to UV radiation can lead to serious health issues such as skin cancer, cataracts, and weakened immune systems in humans, as well as detrimental effects on animals and plants.

Additionally, the ozone layer plays a crucial role in maintaining the ecological balance on Earth by helping to preserve the health of various ecosystems. The impact of UV radiation extends to agriculture as well, affecting crop yields and livestock health, which could ultimately influence food security and biodiversity. Thus, the ozone layer is vital not only for human health but also for the health of the planet as a whole.