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Tunza for Youth - United Nations Environment Programme

Key Facts About Ozone Layer        

Ozone Layer Home          Challenges       Make A Difference      

About 20 Kilometres thick, this giant umbrella is made up of a layer of ozone gas. This gas is found some 15 to 35 kilometres above the Earth's surface in the upper atmosphere or "stratosphere".

If the ozone layer was brought down to the Earth's surface, air pressure and temperature conditions would compress the ozone into a layer 2 to 5 mm thick!

If all ozone-depleting chemicals were successfully phased out, the ozone layer would eventually heal itself.

We don't need a tan to be healthy. Protect your skin from the sun: spend less time in the sun, especially when your shadow is shorter than you! Cover up! Wear a hat, long-sleeved shirt and long pants. Use a sunscreen of SPF 15 or greater. Stay out of the sun between 11.00 am to 3.00 pm.

 
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