The Ozone Layer: Why Does the Earth Wear Sunglasses?

The Sun sends out powerful 'UV rays' that can cause sunburns and hurt our skin. High up in the atmosphere, there is a layer of special gas called Ozone. This layer acts like a pair of giant, invisible sunglasses for the planet, soaking up the most dangerous rays before they reach us.

This layer is very thin, but it is incredibly important. Without it, the Earth would get too much 'solar energy,' making it hard for plants and animals to survive. This is why scientists watch the sky to make sure the ozone layer stays thick and healthy.

Years ago, certain chemicals from spray cans and fridges were drifting up and eating 'holes' in the ozone layer. Since then, countries all over the world have banned those chemicals, and the ozone layer is slowly healing itself!