The United Nations says human action to save the ozone layer has worked as hoped, and it may recover within decades.
A report co-produced by UN, US, and EU agencies, says an international agreement in 1987 – known as the Montreal Protocol – which was designed to stop using the harmful chemicals that were damaging the layer has been successful.
The ozone layer is a thin part of the Earth’s atmosphere that absorbs most of the ultraviolet radiation from the Sun.
Ultraviolet rays can damage DNA and cause sunburn, increasing the long-term risk of problems such as skin cancer.
The report further says if current policies are maintained, the ozone layer will be restored at different points in different places.