In 2047, Tiberium has blanketed the Earth, which is now divided into zones based on the level of Tiberium infestation. Pristine Blue Zones represent 20% of the planet?s surface and are the last refuge of the civilized world. Partially habitable Yellow Zones make up 50% of the planet?s surface; most of the world?s population lives in these war-torn and ecologically ravaged areas. The remaining 30% of the planet is uninhabitable, a Tiberium wasteland swept by violent Ion Storms. Red Zones are like the surface of an Alien planet.