Social design is something that graphic designers, illustrators and other can use to give a message to the rest of the world for social problems with a creative angle.
For this purpose Greek Graphic Designers Association created an action called Dimiourgika Kimmata (Creative Waves) so it can promote social design in Greece too. Through their website give a variety of issues that you can put your creative hands on. There is deadline for each one issue and at the end uploaded in their webpage. Everyone can participate, it's not a competition and there is no fee.
So check it out and be part of this!