Effects of sunlight on rubber, ink, paper

The sun emits rays in a large spectrum of wavelengths. These rays include UV light which has been determined to be harmful to humans.

 We use sun-glasses and sun-tan lotion to shield ourselves from harmful effects of UV radiation from the sun. 

The question is "Does sunlight have harmful effects on other material around us?".

We have seen discoloration of clothes and magazine covers caused by sunlight. Are other materials also affected in a similar way.

 Project description:
In this project we test 3 organic substances - rubber, ink and paper to see how they are affected by the sunlight.
 Details of this project:
More details or support for this project is available at the members section of ScienceProject.com web site. Material needed for experiment or a science kit about this title may be available at MiniScience.com.