Major Acid Peatland species are projected to decrease across northern Minnesota by the end of the century (black spruce and tamarack).

Multiple forest impact models tend to agree that these species are more likely to decrease in suitable habitat and biomass across a range of climate scenarios by the end of the century. Black spruce and tamarack are at the southern edge of their ranges in Minnesota, and therefore may not tolerate warmer conditions. Minnesota is also approaching the southern range limit for sphagnum moss. Acid peatlands also contain a suite of rare and endemic plant species that are adapted to acidic, nutrient-poor conditions. These associated species are also presumably vulnerable to changes in water table level and the peat substrate.