Red zone

Red Zones are areas of the planet that were contaminated by vast amounts of Tiberium, frequently hit with Ion Storms. Venturing into, over, or even near these wastelands were extremely dangerous, especially for infantry vulnerable to Tiberium. The Red Zones cover approximately 30 percent of Earth.

Scientists hypothesied that Tiberium was and is terraforming the planet for an alien civilization. It is not known if this is actually the case, although more scientists are coming to support this hypothesis. The evidence is that there were multiple meteors that had impacted on earth and that are related to the emergence of Tiberium, and that, given that they come from outside the solar system, the chance of such random collisions with Earth occurring in a short time period is statistically almost nil. If terraforming was the case, scientists argued, a visit from the aliens involved would arrive before long, as there is enough Tiberium on the planet to fuel the entire Earth's economy for at least a few decades. The scientists were proven right when the Scrin finally invaded Earth.

Owing to the prevalence of Tiberium, the Red Zones are almost completely uninhabited, save for a few groups of Forgotten. Indeed, Red Zones were lethal to non-mutated humans, as even a small breach in combat armor would cause the wearer to be infected by Tiberium and would die shortly afterwards.

Yellow Zones (and the poeple into it) that are nearby Tiberium Glaiciers where constantly under threat to turn into a red zone too. s

Numerous Red Zones were designated by the Scrin as locations for Thresholds. The Battle of Ground Zero and the Battle Of Kane's Tower occured in Red Zones.

Red zones

 * R-1: South-Eastern Europe, Northern shores of Africa, Middle East
 * R-2: Central Africa
 * R-3: Vicinity of Caspian Sea
 * R-4: Central China
 * R-5: Borneo
 * R-6: North-west South America
 * R-7: Central United States
 * R-8: Central Australia