The Apocalypse can be either cold or hot, you should see there are two Apocalypse-triggering events in the Agepedia, so what probably caused the confusion is you had unlocked only the first one before that (if it is not the final event of the game, which ends the run if lost, my suggestion is to just get hit by the bad event and focus on the other 3, you can still do it!)

Ohh okay. I died tho . Didn't prepare well enough anyway

Could we have a way to predict whether the Apocalypse will be Heat or Cold in advance ? Making Icepips is basically a gamble now since the Ice Maker is extremely unlikely to be usable in Year 1 and using it in Year 2 has now a 50% chance of being almost entirely useless. Ice House is the same too, unless you're lucky enough to get Snow during the Y1 winter and focus on generating enough Advanced Tools for cutting ice to use in Y2 Summer.

I am considering that, but on the other hand knowing it beforehand would make the strategy too obvious if it was known from the start, and since I'd like to add more apocalypse types in the future I'm evaluating the options.

I don't think knowing from the start specifically is needed, but I could see it either being revealed at a certain point (maybe start of Page 7) or linked to a specific research.

Now that I think about it, every research in the game right now is linked to a building - did you consider adding some research options with different effects ? (Like passives, such as Civilization)

Some kind of late-game oracle building that predicts the type of apocalypse would be an interesting addition. It could make mistakes unless you use it multiple times? Or.. it could actually help determine which apocalypse it is, like protection? You could use it enough to guarantee hot/cold, or it could be a die roll if you don't use it enough or at all.