We all know what oxygen is, but many don’t realise it’s quite different to ozone. While oxygen is comprised of two oxygen molecules (O2), ozone has three (O3). It can be manmade, but also occurs naturally, high up in the atmosphere, when the rays of the sun break O2 apart. When this happens, the newly single oxygen molecules immediately attach themselves to another oxygen two-some, creating the threesome that is ozone. So yes, the ‘ozone layer’ isn’t just a fancy name for the upper layers of the sky - it’s where you actually find ozone!