Mass Extinction: Frozen

An unnatural shift in the atmosphere's chemical make-up resulted in the slow onset of an ice age, beginning before the formation of … and likely persisting long after our passing. The exact cause is unknown, but possible explanations include failed terraforming attempts or intra-planetary terrorism. Some radical elements within the scientific community on … suggest that the climate shift may have been caused by the unchecked emission of industrial by-products. This view is confined to the fringe, as it is unlikely any race intelligent enough for industrialization would be foolish enough to wipe themselves out.

The command below will trigger the "Mass Extinction: Frozen" event in Stellaris:

When this event fires, you can choose between these 2 options:

• OK
• OK

Stellaris events fire in chains — one event leads to the next. Here is how Mass Extinction: Frozen (country.1150) connects.