Effects

The ozone layer protects humans and animals from the harmful UV-B rays of the sun. When this protective layer is reduced, it has dramatic consequences on life.

The metabolism of plants is affected, which means a slower photosynthesis.

The ultraviolet radiation destroys microorganisms, which play an important role in the food chain.

When the amount of phytoplankton decreases in the Antarctic ocean, it has also dramatic consequences for mammals such as whales and seals as well as penguins [higher up the food chain].

Humans are affected most directly by increased chances of skin cancer.

Solutions

On 16 September 1987 the Montreal Protocol was signed.

The participating countries agreed to cut in half the CFC consumption by the end of the 20th century.