You inject those serums twisto mentioned.
To get them, get a stack of drones (rocky's good 'cause they start with +/-2 tolerances for both temperature and humidity), and note that I mean stack - you want as many in the single pile as you can get. Eject fertility if it's a problem.
Once you have that, put them in the acclimatiser and load it with sand (unless you live near a desert you're willing to butcher, use a macerator or pulveriser on cobble, which you can generate with a igneous extruder - you're gonna need a lot).
When one tolerance is maxed out, start loading in ice instead. Silk touch it from a snowy area (eg with a rock cutter), smash a bit of what's left to regenerate the source blocks.
Once the stack's acclimatised you can ditch that machine for good and grab your serums.