Okay, so the history is pretty silly, espically this part:
the scorching 145 °F days had come down to a bearable 80 °F, but by this time world war 3 started, and the war devastated the surrounding city of the Terraformer, also destroying the thermo-regulators, causing the Terraformer to cool the planets' surface down to −129 °F by the year 2097.
(since when can people even survive 145 or -129 degree days, this should almost instantly kill you)
And I don't really understand how you can get a realistic ice age feel in bl.
But other than that, good luck.