A solid tip from metagaming regarding a post on gamesetwatch:

The World Bank Institute and alternate reality game designer Jane McGonigal have unveiled Evoke, a new ARG seeking to empower young people around the world, especially those in Africa, to come up with creative solutions for real world problems like food security, energy, disaster relief, poverty, education, global conflict, water access, disease, hunger, and more.

McGonigal says the goal for the game is to “build up our global capacity to change the world in as short a time as possible, for as many people as possible”. She explains Evoke in an interview with Worldchanging.