You are in charge of maintaining the forest. The more trees grow, the more debris is piled, and the biggest the chance of a fire. You can start fires to burn debris by pressing on the red big button, but take into account that there is a chance that the fire goes uncontrolled. You have 1 minute; let's see how many trees you are able to grow.
Pictures: - Fire gif: http://nebula.wsimg.com/44ae260188821aa8cbde72902820f89d?AccessKeyId=AE0FCA45CC28C4EBB325&disposition=0&alloworigin=1 - Forest pic: http://www.orderofinterbeing.org/wp-content/uploads/2014/04/light-forest.jpg