c35. Two of the three ice biomes are cracked, and we've got a modest but steady supply of berry sludge coming.
Some good news: 4 wheezeworts, so I won't have to do a shine bug reactor for radiation research.
The next problem is power. As the picture shows, I'm building the right-hand wall, cuz I'm about to crack that caustic biome to the right, where I'll set up my coal gens.