Permafrost soils are some of the coolest things I've ever seen, and the primary author, Dr. Erin Rooney, is showing us all her chemistry skills from the second chapter of her dissertation. If you want to see her first chapter, see her other permafrost paper above that describes some of the *physical* changes to permafrost when it undergoes freeze thaw cycles. But this paper is about the *chemical* changes that occur, and what that could mean for arctic-permafrost nutrient cycling.