1: Build giant pyramid
2: Fill it with great green rooms as habitats for the plants and animals of the earth
3:Connect it to the great-Earth Current as a source of power and warmth
4: Destroy the sun and open rifts to the outer darkness to eliminate holdouts
5:Spend the rest of human existence within the great pyramid in the cold nightlands that were once Earth
If anyone has any better ideas, I am open to suggestion
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2) Turn humanity into androids, or other constructs of their choosing.
3) Put everybody who refused to comply in the pyramid.
4) Build a impenetrable sphere around the island chain.