What kind of building do I get if I upgrade my Pasture building?
I know if I choose to upgrade my Aquaducts I can then build Hydro Plants, but I don't know what I can build if I upgrade my Pastures... what do I get to build instead of Pastures?
You get to build Solar Farms instead, which produce energy (but no catnip).
According to the official game wiki, it gives Energy Production 2 (1.5 during winter, 2.66 during summer).