Simplicity and humor often succeed at best communicating important messages and 'Start Acting' by Mariam Melkumyan hits the nail on the head -- though perhaps the effect is slightly more extreme than that.
Jury winner of the Compostmodern poster competition, the graphic designer chose to convey a clear and urgent message by means of a clever cartoon. 'Start Acting' by Mariam Melkumyan blatantly declares that if society doesn't shape up and take care of the earth, nature will literally kill us.
In this case, the tables have turned, and a helpless human victim has experience his trunk being sawed off by a tree. Using simple symbolism, menacing thoughts of global warming and climate change come to mind.